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已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与...
试题详情
已知正四棱柱ABCD-A
1B
1C
1D
1中,AA
1=2AB,E为AA
1中点,则异面直线BE与CD
1所成角的余弦值为( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFISURBVEhL5VbBEYQgDExdPijHP534phC+FnIP
S8lBxAND9EDwfBwzzijgZlnCBkChAQC2Ph4WjsCl/tq+fwBfDCpQaBYuzoJGhT1SBtPhMllmHTY4
B581oAoRF6MQ9PyJXgZO02fUnDmtRruRrfk58bsN3K9oJ8Uq0Ua+CZzLgE7xH4LbMWzWGDfCndC8
CZp/k8VaSzjTADhML3r3R78InG8o+44otIKVfTG4zyGWiltaZt4yOsaefQZOjKKZJansMJJDtB/Y
G9drGhCG6YB5rW0JrujZy7J0AD/WvBN4PYz8h1OgvepIGFm29GK84Yje0ivIQ+AXKg9fscz8YuUp
A6dZggtmfdKcGOJE83qLbWJOlUcoa6kTpgGqmN8K7sz7tCA3yYLiVUK6KK1hqmShHDq5BJUxL608
7PpWBt7JXB7ylg7sb2X+Br+jUbqJq/rVAAAAAElFTkSuQmCC
)
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACRSURBVDhP3VPbDcAgCGQydmIdlmEUR6E+W6yo
P6YfNTEm5HJc7k7QzYGDgMCKgMqh5ywrhBQA4p0BCkrp54BsUvKhXJLHrJNZTGLdr2jCvDeR7hnO
NSow3kYBsrZiVQ2xLGZo196Vs/a+AEEZWw4Ui+eVts6ExuIOPmSxZp9jVC/YB6wYhPrPA7po09dh
zWK/AMs974HIA8HSAAAAAElFTkSuQmCC
)
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGESURBVFhH7VdNzoQgDO25XHAc99zEtQdx60Fm
wVH60YrKT0GQMZPMfCST6AB9fa+FVsDGAQDY+yNIaMRl0HeMZitfArzqM256LSopMjYzKlA4m3ir
wVm5nFAz+tNW6hX1AWafbQxL2Anw4XQKvGpA5bwxs0LwDAMaE3hCi5uAmSQ5HAGzCtrO7IPWnO9B
csVeSZrLySUAkxKBvJvsOykH7MXiTowFxikJEdhxY3nOuPQwbgO2SMGGZXTZPh4+vFlqjxvFxsm9
LAtPTAPgML34uRo4Tq7oPbq5KA7CeWTmG+tqYMr16DjtR4vtsLTHxS9dApsao11DrBNglxe7jTA3
80lbfVe/pgFhmD5TJIj1lxSJYll4ZtIq199RtNrgrH6Gz7XVf+C8Rje6jJLgdVLf7DL6gdmCUOyT
/6Q1Mnwd4xzwRZfxGGMuMEJ741ehHHgX448B24JbbOgek9r2SUILm6/pviNdUnOuF5r2fsa1XUb0
mdIPfH3nN69okLrZdnHD7wH/AS2p9txfexONAAAAAElFTkSuQmCC
)
D.
相关试题
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAU1JREFU
SEvlVu0RgyAMxY3cxy0YwiXYgQGYwzt3cImURKgYowXFer3yRwXz8njkgwb8UGw0TcOnir8JFsH5
8EjSdPHcP4BPDrTS4CauzgROKzw3UNpBupwny2BmYwF8MAp08Dg5DcoMb+954PT7AIaD026MX4kD
/1m+r4HjjlZSzBJF8pfAuQzgFf8iuO3CYXXLQYhJJGj+SRZrLYH2rYK2H+ldztCMA2UHvGhOO5jZ
Z4NjDLFQjGFJOGlKdF4OZL8BJ0YhUfwzCWVvniTRemENPvYtqLbfYV5ct9bgaI7sf7cqlgsgW2CH
CXFe97mJllqMI06dfrbD6iHwE52Hb0BmfrLz5IHvdZ5NNxKKWeLhQPPyEnuJOXUeoa2llTB1UMT8
VnBfvA8b8iVZQLxKSBel2U2RLGhwdAnKY57bedj1LQ+8UgV7qLZUYH8r8xfR5VK2ub0s6QAAAABJ
RU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAJhJREFU
OE/dk90NwCAIhOnKrMMmzOEULkH9qVYrEps2fSiJMTEnXo7PTUKBVVFgFawLPAsCCvv+Su7gKPoI
aybIKqGfC1JIMYe8yJ1h3Yh6MpQXOhRj2p5gWufhsUnPWIMCZClgHR4CLM1h+1pFro33IvDCWOZA
ATwN2uPM0QjukEMy27ynBNUb1gVWB0f95wExaPp6WDMudiIX3/atDCZcAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAU1JREFU
SEvlVu0RgyAMxY3cxy0YwiXYgQGYwzt3cImURKgYowXFer3yRwXz8njkgwb8UGw0TcOnir8JFsH5
8EjSdPHcP4BPDrTS4CauzgROKzw3UNpBupwny2BmYwF8MAp08Dg5DcoMb+954PT7AIaD026MX4kD
/1m+r4HjjlZSzBJF8pfAuQzgFf8iuO3CYXXLQYhJJGj+SRZrLYH2rYK2H+ldztCMA2UHvGhOO5jZ
Z4NjDLFQjGFJOGlKdF4OZL8BJ0YhUfwzCWVvniTRemENPvYtqLbfYV5ct9bgaI7sf7cqlgsgW2CH
CXFe97mJllqMI06dfrbD6iHwE52Hb0BmfrLz5IHvdZ5NNxKKWeLhQPPyEnuJOXUeoa2llTB1UMT8
VnBfvA8b8iVZQLxKSBel2U2RLGhwdAnKY57bedj1LQ+8UgV7qLZUYH8r8xfR5VK2ub0s6QAAAABJ
RU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAJhJREFU
OE/dk90NwCAIhOnKrMMmzOEULkH9qVYrEps2fSiJMTEnXo7PTUKBVVFgFawLPAsCCvv+Su7gKPoI
aybIKqGfC1JIMYe8yJ1h3Yh6MpQXOhRj2p5gWufhsUnPWIMCZClgHR4CLM1h+1pFro33IvDCWOZA
ATwN2uPM0QjukEMy27ynBNUb1gVWB0f95wExaPp6WDMudiIX3/atDCZcAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFISURBVEhL5VbBEYQgDExdPijHP534phC+FnIP
S8lBxAND9EDwfBwzzijgZlnCBkChAQC2Ph4WjsCl/tq+fwBfDCpQaBYuzoJGhT1SBtPhMllmHTY4
B581oAoRF6MQ9PyJXgZO02fUnDmtRruRrfk58bsN3K9oJ8Uq0Ua+CZzLgE7xH4LbMWzWGDfCndC8
CZp/k8VaSzjTADhML3r3R78InG8o+44otIKVfTG4zyGWiltaZt4yOsaefQZOjKKZJansMJJDtB/Y
G9drGhCG6YB5rW0JrujZy7J0AD/WvBN4PYz8h1OgvepIGFm29GK84Yje0ivIQ+AXKg9fscz8YuUp
A6dZggtmfdKcGOJE83qLbWJOlUcoa6kTpgGqmN8K7sz7tCA3yYLiVUK6KK1hqmShHDq5BJUxL608
7PpWBt7JXB7ylg7sb2X+Br+jUbqJq/rVAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACRSURBVDhP3VPbDcAgCGQydmIdlmEUR6E+W6yo
P6YfNTEm5HJc7k7QzYGDgMCKgMqh5ywrhBQA4p0BCkrp54BsUvKhXJLHrJNZTGLdr2jCvDeR7hnO
NSow3kYBsrZiVQ2xLGZo196Vs/a+AEEZWw4Ui+eVts6ExuIOPmSxZp9jVC/YB6wYhPrPA7po09dh
zWK/AMs974HIA8HSAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGESURBVFhH7VdNzoQgDO25XHAc99zEtQdx60Fm
wVH60YrKT0GQMZPMfCST6AB9fa+FVsDGAQDY+yNIaMRl0HeMZitfArzqM256LSopMjYzKlA4m3ir
wVm5nFAz+tNW6hX1AWafbQxL2Anw4XQKvGpA5bwxs0LwDAMaE3hCi5uAmSQ5HAGzCtrO7IPWnO9B
csVeSZrLySUAkxKBvJvsOykH7MXiTowFxikJEdhxY3nOuPQwbgO2SMGGZXTZPh4+vFlqjxvFxsm9
LAtPTAPgML34uRo4Tq7oPbq5KA7CeWTmG+tqYMr16DjtR4vtsLTHxS9dApsao11DrBNglxe7jTA3
80lbfVe/pgFhmD5TJIj1lxSJYll4ZtIq199RtNrgrH6Gz7XVf+C8Rje6jJLgdVLf7DL6gdmCUOyT
/6Q1Mnwd4xzwRZfxGGMuMEJ741ehHHgX448B24JbbOgek9r2SUILm6/pviNdUnOuF5r2fsa1XUb0
mdIPfH3nN69okLrZdnHD7wH/AS2p9txfexONAAAAAElFTkSuQmCC
)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAU1JREFU
SEvlVu0RgyAMxY3cxy0YwiXYgQGYwzt3cImURKgYowXFer3yRwXz8njkgwb8UGw0TcOnir8JFsH5
8EjSdPHcP4BPDrTS4CauzgROKzw3UNpBupwny2BmYwF8MAp08Dg5DcoMb+954PT7AIaD026MX4kD
/1m+r4HjjlZSzBJF8pfAuQzgFf8iuO3CYXXLQYhJJGj+SRZrLYH2rYK2H+ldztCMA2UHvGhOO5jZ
Z4NjDLFQjGFJOGlKdF4OZL8BJ0YhUfwzCWVvniTRemENPvYtqLbfYV5ct9bgaI7sf7cqlgsgW2CH
CXFe97mJllqMI06dfrbD6iHwE52Hb0BmfrLz5IHvdZ5NNxKKWeLhQPPyEnuJOXUeoa2llTB1UMT8
VnBfvA8b8iVZQLxKSBel2U2RLGhwdAnKY57bedj1LQ+8UgV7qLZUYH8r8xfR5VK2ub0s6QAAAABJ
RU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAJhJREFU
OE/dk90NwCAIhOnKrMMmzOEULkH9qVYrEps2fSiJMTEnXo7PTUKBVVFgFawLPAsCCvv+Su7gKPoI
aybIKqGfC1JIMYe8yJ1h3Yh6MpQXOhRj2p5gWufhsUnPWIMCZClgHR4CLM1h+1pFro33IvDCWOZA
ATwN2uPM0QjukEMy27ynBNUb1gVWB0f95wExaPp6WDMudiIX3/atDCZcAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAZVJREFU
WEfll42thDAIx+tG7uMWHcIl3MEBOofJ7dAleAXtaSu2UL33kWdyiVrkB3/Bch2EwyiOrusU1rwp
IRGsOYIrjfmlrdrLs+BlQrnX37QUM3oQvMD0hoXzAC+xWbB3YI0F5/OYPTi7JWQdHJcNeJ/cWCYl
+K3WGYy+7BaNdzZRM3nH+SKnOS81KpWBSYUJ9heHNvv1Bj5I0vSOGTAqkci7MqL7tKopyl2eOxmf
1SuBA6kmt1RqNRhQoqjHPGxtNryTl4LJj1jqUN/O7kUyzzMBx95AP77oXAzOiyu7NiRJ/HiwvRho
lPmatRgcbPN2iq1FfqQf3iEEh1mfwFtBxuDTprjuFjH4NfZg+vEiY2n4u50YjI9g1g9+q3XR/hhY
F+a1NY4Ih6r+nnNVVT+VafSjKq4n4b8c3DBh1NSpZ9w4YdwHkwdmoz/d42wK7VSLbF3XTxg1v3Wp
L8C0qzH77XEHKsH/Hrg2YXxM6jCcMeMrN9TzITRLTSVXGNjvZyydMLK/KPfBNQ+N60KpG70XHvt/
4C/KmeKfnXHOfAAAAABJRU5ErkJggg==
)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAU1JREFU
SEvlVu0RgyAMxY3cxy0YwiXYgQGYwzt3cImURKgYowXFer3yRwXz8njkgwb8UGw0TcOnir8JFsH5
8EjSdPHcP4BPDrTS4CauzgROKzw3UNpBupwny2BmYwF8MAp08Dg5DcoMb+954PT7AIaD026MX4kD
/1m+r4HjjlZSzBJF8pfAuQzgFf8iuO3CYXXLQYhJJGj+SRZrLYH2rYK2H+ldztCMA2UHvGhOO5jZ
Z4NjDLFQjGFJOGlKdF4OZL8BJ0YhUfwzCWVvniTRemENPvYtqLbfYV5ct9bgaI7sf7cqlgsgW2CH
CXFe97mJllqMI06dfrbD6iHwE52Hb0BmfrLz5IHvdZ5NNxKKWeLhQPPyEnuJOXUeoa2llTB1UMT8
VnBfvA8b8iVZQLxKSBel2U2RLGhwdAnKY57bedj1LQ+8UgV7qLZUYH8r8xfR5VK2ub0s6QAAAABJ
RU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAJhJREFU
OE/dk90NwCAIhOnKrMMmzOEULkH9qVYrEps2fSiJMTEnXo7PTUKBVVFgFawLPAsCCvv+Su7gKPoI
aybIKqGfC1JIMYe8yJ1h3Yh6MpQXOhRj2p5gWufhsUnPWIMCZClgHR4CLM1h+1pFro33IvDCWOZA
ATwN2uPM0QjukEMy27ynBNUb1gVWB0f95wExaPp6WDMudiIX3/atDCZcAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAU1JREFU
SEvlVu0RgyAMxY3cxy0YwiXYgQGYwzt3cImURKgYowXFer3yRwXz8njkgwb8UGw0TcOnir8JFsH5
8EjSdPHcP4BPDrTS4CauzgROKzw3UNpBupwny2BmYwF8MAp08Dg5DcoMb+954PT7AIaD026MX4kD
/1m+r4HjjlZSzBJF8pfAuQzgFf8iuO3CYXXLQYhJJGj+SRZrLYH2rYK2H+ldztCMA2UHvGhOO5jZ
Z4NjDLFQjGFJOGlKdF4OZL8BJ0YhUfwzCWVvniTRemENPvYtqLbfYV5ct9bgaI7sf7cqlgsgW2CH
CXFe97mJllqMI06dfrbD6iHwE52Hb0BmfrLz5IHvdZ5NNxKKWeLhQPPyEnuJOXUeoa2llTB1UMT8
VnBfvA8b8iVZQLxKSBel2U2RLGhwdAnKY57bedj1LQ+8UgV7qLZUYH8r8xfR5VK2ub0s6QAAAABJ
RU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAJhJREFU
OE/dk90NwCAIhOnKrMMmzOEULkH9qVYrEps2fSiJMTEnXo7PTUKBVVFgFawLPAsCCvv+Su7gKPoI
aybIKqGfC1JIMYe8yJ1h3Yh6MpQXOhRj2p5gWufhsUnPWIMCZClgHR4CLM1h+1pFro33IvDCWOZA
ATwN2uPM0QjukEMy27ynBNUb1gVWB0f95wExaPp6WDMudiIX3/atDCZcAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAZVJREFU
WEfll42thDAIx+tG7uMWHcIl3MEBOofJ7dAleAXtaSu2UL33kWdyiVrkB3/Bch2EwyiOrusU1rwp
IRGsOYIrjfmlrdrLs+BlQrnX37QUM3oQvMD0hoXzAC+xWbB3YI0F5/OYPTi7JWQdHJcNeJ/cWCYl
+K3WGYy+7BaNdzZRM3nH+SKnOS81KpWBSYUJ9heHNvv1Bj5I0vSOGTAqkci7MqL7tKopyl2eOxmf
1SuBA6kmt1RqNRhQoqjHPGxtNryTl4LJj1jqUN/O7kUyzzMBx95AP77oXAzOiyu7NiRJ/HiwvRho
lPmatRgcbPN2iq1FfqQf3iEEh1mfwFtBxuDTprjuFjH4NfZg+vEiY2n4u50YjI9g1g9+q3XR/hhY
F+a1NY4Ih6r+nnNVVT+VafSjKq4n4b8c3DBh1NSpZ9w4YdwHkwdmoz/d42wK7VSLbF3XTxg1v3Wp
L8C0qzH77XEHKsH/Hrg2YXxM6jCcMeMrN9TzITRLTSVXGNjvZyydMLK/KPfBNQ+N60KpG70XHvt/
4C/KmeKfnXHOfAAAAABJRU5ErkJggg==
)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEZSURBVEhL7ZbLEYMgEEC3Lg+U451OOFMIVwvx
QCkbWCDKShIQzGSSvBkcPvpmWREELAAA3YU8dGWkwV5+QW41ChCobWzfsahFzLXQrrVRJ19keLgg
XySgiJ1WCwS5UN1THzkuKLmcZiPdSMLfs7X75H5GWSpCilLwXXKehjfLzUwygDn0OIalxRhDFTUB
TmqlerWcv1DW3iw0gxB9tdzBl2KqezLL7KQ++oOcIoofiitZmmMqaCwfyOWrmhAm9SDydg4WH/1l
cs+l8lG4ILcXNbKQnK4X8Y3yEycPpyw/efJwnqSltJfwvvJ+k2iTv9hiOU1ySkNBvt8J93yO/NK0
hOXJfyXYPTva5I7+pVh78pz6iAbxlxdAvAG/o1G6eA7klwAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACSSURBVDhP3ZLBDcMwCEWZjJ1Yh2UYxaP8Ymyr
kLruJe2hTyJSrCcgPyZ84E6hKZgY2ub7ZAgmICKvd0JgkD8XIqSewyixOA1Shz2/ENZiuwohngdu
FJrycz4rVqBT8JjTYWYIfuVyvBkXGpTXp4n3qpQlTbpU/2gROrFsmvciXBfeC6cOJtcdDrepsxlR
+boAPADLPe+B4t7vHgAAAABJRU5ErkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFjSURBVFhH7ZZNkoQgDIVzLhccxz03cc1B3HqQ
XnCUTBJBJUZHG21ravqr0hbBPPL4aQBPAgDVl8SR+wnyh7X8V+HBT/6DH+TVFqZwDOjAYYipPBEx
uBTXBSrNUJQB/SRGz9RoT3slPHV6LTx4QJdexuCKpABjLHrCjU8JC9xhJSwueKrJcJu5XETRvbI4
LMxOFPaOtufwKcpiLC4SXidhCifEnnlcLO4RJooP+nZ0AdqxTFxs9QL+INX2fS+/XQPYdC95Piys
J5cqqyjcKxWAkczHrA8LE3o5LYcQxFqx016LmZbqOeuVcJoXOUYxrMleqSsrDKs3eHUNQtOthd/k
VBTO+hFh5jHhq6AE5onxqUuE5f4AX+FtZKOwNpjFJqFOGXscE37zlLHHCaut/Vi/s/dsizrhX/76
9qgSFmsN4b2DROZvCj9m9bjE9BFWtdmgTpi4dzkdPWVcvoHcwFf4QyD+AC2p9twvMbqBAAAAAElF
TkSuQmCC
)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAU1JREFU
SEvlVu0RgyAMxY3cxy0YwiXYgQGYwzt3cImURKgYowXFer3yRwXz8njkgwb8UGw0TcOnir8JFsH5
8EjSdPHcP4BPDrTS4CauzgROKzw3UNpBupwny2BmYwF8MAp08Dg5DcoMb+954PT7AIaD026MX4kD
/1m+r4HjjlZSzBJF8pfAuQzgFf8iuO3CYXXLQYhJJGj+SRZrLYH2rYK2H+ldztCMA2UHvGhOO5jZ
Z4NjDLFQjGFJOGlKdF4OZL8BJ0YhUfwzCWVvniTRemENPvYtqLbfYV5ct9bgaI7sf7cqlgsgW2CH
CXFe97mJllqMI06dfrbD6iHwE52Hb0BmfrLz5IHvdZ5NNxKKWeLhQPPyEnuJOXUeoa2llTB1UMT8
VnBfvA8b8iVZQLxKSBel2U2RLGhwdAnKY57bedj1LQ+8UgV7qLZUYH8r8xfR5VK2ub0s6QAAAABJ
RU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAJhJREFU
OE/dk90NwCAIhOnKrMMmzOEULkH9qVYrEps2fSiJMTEnXo7PTUKBVVFgFawLPAsCCvv+Su7gKPoI
aybIKqGfC1JIMYe8yJ1h3Yh6MpQXOhRj2p5gWufhsUnPWIMCZClgHR4CLM1h+1pFro33IvDCWOZA
ATwN2uPM0QjukEMy27ynBNUb1gVWB0f95wExaPp6WDMudiIX3/atDCZcAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFISURBVEhL5VbBEYQgDExdPijHP534phC+FnIP
S8lBxAND9EDwfBwzzijgZlnCBkChAQC2Ph4WjsCl/tq+fwBfDCpQaBYuzoJGhT1SBtPhMllmHTY4
B581oAoRF6MQ9PyJXgZO02fUnDmtRruRrfk58bsN3K9oJ8Uq0Ua+CZzLgE7xH4LbMWzWGDfCndC8
CZp/k8VaSzjTADhML3r3R78InG8o+44otIKVfTG4zyGWiltaZt4yOsaefQZOjKKZJansMJJDtB/Y
G9drGhCG6YB5rW0JrujZy7J0AD/WvBN4PYz8h1OgvepIGFm29GK84Yje0ivIQ+AXKg9fscz8YuUp
A6dZggtmfdKcGOJE83qLbWJOlUcoa6kTpgGqmN8K7sz7tCA3yYLiVUK6KK1hqmShHDq5BJUxL608
7PpWBt7JXB7ylg7sb2X+Br+jUbqJq/rVAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACRSURBVDhP3VPbDcAgCGQydmIdlmEUR6E+W6yo
P6YfNTEm5HJc7k7QzYGDgMCKgMqh5ywrhBQA4p0BCkrp54BsUvKhXJLHrJNZTGLdr2jCvDeR7hnO
NSow3kYBsrZiVQ2xLGZo196Vs/a+AEEZWw4Ui+eVts6ExuIOPmSxZp9jVC/YB6wYhPrPA7po09dh
zWK/AMs974HIA8HSAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGESURBVFhH7VdNzoQgDO25XHAc99zEtQdx60Fm
wVH60YrKT0GQMZPMfCST6AB9fa+FVsDGAQDY+yNIaMRl0HeMZitfArzqM256LSopMjYzKlA4m3ir
wVm5nFAz+tNW6hX1AWafbQxL2Anw4XQKvGpA5bwxs0LwDAMaE3hCi5uAmSQ5HAGzCtrO7IPWnO9B
csVeSZrLySUAkxKBvJvsOykH7MXiTowFxikJEdhxY3nOuPQwbgO2SMGGZXTZPh4+vFlqjxvFxsm9
LAtPTAPgML34uRo4Tq7oPbq5KA7CeWTmG+tqYMr16DjtR4vtsLTHxS9dApsao11DrBNglxe7jTA3
80lbfVe/pgFhmD5TJIj1lxSJYll4ZtIq199RtNrgrH6Gz7XVf+C8Rje6jJLgdVLf7DL6gdmCUOyT
/6Q1Mnwd4xzwRZfxGGMuMEJ741ehHHgX448B24JbbOgek9r2SUILm6/pviNdUnOuF5r2fsa1XUb0
mdIPfH3nN69okLrZdnHD7wH/AS2p9txfexONAAAAAElFTkSuQmCC
)
D.
-
已知正四棱柱ABCD-A1B1C1D1中,AA1=2AB,E为AA1中点,则异面直线BE与CD1所成角的余弦值为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFISURBVEhL5VbBEYQgDExdPijHP534phC+FnIP
S8lBxAND9EDwfBwzzijgZlnCBkChAQC2Ph4WjsCl/tq+fwBfDCpQaBYuzoJGhT1SBtPhMllmHTY4
B581oAoRF6MQ9PyJXgZO02fUnDmtRruRrfk58bsN3K9oJ8Uq0Ua+CZzLgE7xH4LbMWzWGDfCndC8
CZp/k8VaSzjTADhML3r3R78InG8o+44otIKVfTG4zyGWiltaZt4yOsaefQZOjKKZJansMJJDtB/Y
G9drGhCG6YB5rW0JrujZy7J0AD/WvBN4PYz8h1OgvepIGFm29GK84Yje0ivIQ+AXKg9fscz8YuUp
A6dZggtmfdKcGOJE83qLbWJOlUcoa6kTpgGqmN8K7sz7tCA3yYLiVUK6KK1hqmShHDq5BJUxL608
7PpWBt7JXB7ylg7sb2X+Br+jUbqJq/rVAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACRSURBVDhP3VPbDcAgCGQydmIdlmEUR6E+W6yo
P6YfNTEm5HJc7k7QzYGDgMCKgMqh5ywrhBQA4p0BCkrp54BsUvKhXJLHrJNZTGLdr2jCvDeR7hnO
NSow3kYBsrZiVQ2xLGZo196Vs/a+AEEZWw4Ui+eVts6ExuIOPmSxZp9jVC/YB6wYhPrPA7po09dh
zWK/AMs974HIA8HSAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAkCAYAAACe0YppAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAGESURBVFhH7VdNzoQgDO25XHAc99zEtQdx60Fm
wVH60YrKT0GQMZPMfCST6AB9fa+FVsDGAQDY+yNIaMRl0HeMZitfArzqM256LSopMjYzKlA4m3ir
wVm5nFAz+tNW6hX1AWafbQxL2Anw4XQKvGpA5bwxs0LwDAMaE3hCi5uAmSQ5HAGzCtrO7IPWnO9B
csVeSZrLySUAkxKBvJvsOykH7MXiTowFxikJEdhxY3nOuPQwbgO2SMGGZXTZPh4+vFlqjxvFxsm9
LAtPTAPgML34uRo4Tq7oPbq5KA7CeWTmG+tqYMr16DjtR4vtsLTHxS9dApsao11DrBNglxe7jTA3
80lbfVe/pgFhmD5TJIj1lxSJYll4ZtIq199RtNrgrH6Gz7XVf+C8Rje6jJLgdVLf7DL6gdmCUOyT
/6Q1Mnwd4xzwRZfxGGMuMEJ741ehHHgX448B24JbbOgek9r2SUILm6/pviNdUnOuF5r2fsa1XUb0
mdIPfH3nN69okLrZdnHD7wH/AS2p9txfexONAAAAAElFTkSuQmCC
)
D.