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(2009•西宁)下面计算正确的是A.2-1=-2B.C.(m•n3)2=m•n6D.m6...
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(2009•西宁)下面计算正确的是( )
A.2
-1=-2
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
4CgdiihiMFYmzjBmSExEBft+BagyAIAkV21tL8/gCFgvBbbW8QfWylzrOo7CO+OiYp6sBjL4zi9l
a8XA0OR+oC35tP0lYN7quMkemKTRLN/IYFH8z+nwlvRaDJLhppfmcmBhE2PxNsUk5OyBesRVIX4X
iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
7GQw4Ya2zRrIDanwYS3yuCPdZ0WJ6kcs5qjkL8A5F2ejAlLjFO+/AaxVeu6ExfGTopOtGJWbVfsV
YPWYzJYsMjaEA45VEx2OrRR/aF0BbBoVgRqfB4zJZNUep9jikicAewHU3sTIPalmnwAAAABJRU5E
rkJggg==
)
C.(m•n
3)
2=m•n
6D.m
6÷m
2=m
4
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(2009•西宁)下面计算正确的是( )
A.2-1=-2
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
4CgdiihiMFYmzjBmSExEBft+BagyAIAkV21tL8/gCFgvBbbW8QfWylzrOo7CO+OiYp6sBjL4zi9l
a8XA0OR+oC35tP0lYN7quMkemKTRLN/IYFH8z+nwlvRaDJLhppfmcmBhE2PxNsUk5OyBesRVIX4X
iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
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rkJggg==
)
C.(m•n3)2=m•n6
D.m6÷m2=m4
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(2009•西宁)下面计算正确的是( )
A.2-1=-2
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
C.(m•n3)2=m•n6
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A.2-1=-2
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
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rkJggg==
)
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A.2-1=-2
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
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rkJggg==
)
C.(m•n3)2=m•n6
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A.2-1=-2
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
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a8XA0OR+oC35tP0lYN7quMkemKTRLN/IYFH8z+nwlvRaDJLhppfmcmBhE2PxNsUk5OyBesRVIX4X
iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
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rkJggg==
)
C.(m•n3)2=m•n6
D.m6÷m2=m4
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A.2-1=-2
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iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
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D.m6÷m2=m4
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(2009•西宁)下面计算正确的是( )
A.2-1=-2
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
4CgdiihiMFYmzjBmSExEBft+BagyAIAkV21tL8/gCFgvBbbW8QfWylzrOo7CO+OiYp6sBjL4zi9l
a8XA0OR+oC35tP0lYN7quMkemKTRLN/IYFH8z+nwlvRaDJLhppfmcmBhE2PxNsUk5OyBesRVIX4X
iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
7GQw4Ya2zRrIDanwYS3yuCPdZ0WJ6kcs5qjkL8A5F2ejAlLjFO+/AaxVeu6ExfGTopOtGJWbVfsV
YPWYzJYsMjaEA45VEx2OrRR/aF0BbBoVgRqfB4zJZNUep9jikicAewHU3sTIPalmnwAAAABJRU5E
rkJggg==
)
C.(m•n3)2=m•n6
D.m6÷m2=m4
-
(2009•西宁)下面计算正确的是( )
A.2-1=-2
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
4CgdiihiMFYmzjBmSExEBft+BagyAIAkV21tL8/gCFgvBbbW8QfWylzrOo7CO+OiYp6sBjL4zi9l
a8XA0OR+oC35tP0lYN7quMkemKTRLN/IYFH8z+nwlvRaDJLhppfmcmBhE2PxNsUk5OyBesRVIX4X
iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
7GQw4Ya2zRrIDanwYS3yuCPdZ0WJ6kcs5qjkL8A5F2ejAlLjFO+/AaxVeu6ExfGTopOtGJWbVfsV
YPWYzJYsMjaEA45VEx2OrRR/aF0BbBoVgRqfB4zJZNUep9jikicAewHU3sTIPalmnwAAAABJRU5E
rkJggg==
)
C.(m•n3)2=m•n6
D.m6÷m2=m4
-
下面计算正确的是( )
A.2-1=-2
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
4CgdiihiMFYmzjBmSExEBft+BagyAIAkV21tL8/gCFgvBbbW8QfWylzrOo7CO+OiYp6sBjL4zi9l
a8XA0OR+oC35tP0lYN7quMkemKTRLN/IYFH8z+nwlvRaDJLhppfmcmBhE2PxNsUk5OyBesRVIX4X
iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
7GQw4Ya2zRrIDanwYS3yuCPdZ0WJ6kcs5qjkL8A5F2ejAlLjFO+/AaxVeu6ExfGTopOtGJWbVfsV
YPWYzJYsMjaEA45VEx2OrRR/aF0BbBoVgRqfB4zJZNUep9jikicAewHU3sTIPalmnwAAAABJRU5E
rkJggg==
)
C.2=m•n6
D.m6÷m2=m4
-
下面计算正确的是( )
A.2-1=-2
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADYAAAASCAYAAAAQeC39AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVFhH7VVLDoQgDO25WHAc99zENQdh24O4
4CgdiihiMFYmzjBmSExEBft+BagyAIAkV21tL8/gCFgvBbbW8QfWylzrOo7CO+OiYp6sBjL4zi9l
a8XA0OR+oC35tP0lYN7quMkemKTRLN/IYFH8z+nwlvRaDJLhppfmcmBhE2PxNsUk5OyBesRVIX4X
iU+qCYEFCxqWuUMrbtGyLa8ohkaTjebtGxiaHJNzxQILOVN1YBIb3ZKxrVpF3kJGzw5oZqFWuJ4l
7GQw4Ya2zRrIDanwYS3yuCPdZ0WJ6kcs5qjkL8A5F2ejAlLjFO+/AaxVeu6ExfGTopOtGJWbVfsV
YPWYzJYsMjaEA45VEx2OrRR/aF0BbBoVgRqfB4zJZNUep9jikicAewHU3sTIPalmnwAAAABJRU5E
rkJggg==
)
C.2=m•n6
D.m6÷m2=m4