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在下列各式中,化简正确的是A.=3B.=±C.=a2D.
试题详情
在下列各式中,化简正确的是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAlCAYAAABLRGl/AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAELSURBVEhL5ZVNDoUgDIR7LhYcxz03Yc1B2HIQ
Fxylr8W/QlALb6mJiVH8nE7rANg5AADV5x2gd7+79kOAHOxlrA2Y99pB50FCJ16S7+gAyaFL/b4o
ABmDPebCYctRAK4vJ8cgi+EwgB4NARhVzBT1DAOQipCGzgH+UZDcqAc5oBV/Z9vOiRLqefgC4Cna
2I0veFC6LoepmSSFB/LnoWuaSsl4B+R85h+L4UwYA8jJpWiTWTDUxi2N6Bz3QEjYzbQi0949aMK4
RFq1L8Rl3zCWcylLvT0aHyDGWNZ6A2j8Wq7vAVvE97tQlGwqKgB/UZtICy1kFY8lNLVVxa7eIBg/
D2A4q5hWcKgbAfwAIp4d/wS44aUAAAAASUVORK5CYII=
)
=3
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADOSURBVDhP3ZRLDsQgCIY5lwuP456buPYgbj1I
Fx6FEcbHTMWknboakiaNyscPiECKAQA9/lZgbf3OGvwxOAeyYCnkOccc7OiJDcRHrpUiYXXUwImw
wj5DXgOLRwFoiktQTHMWD8GZgm1XE0voYQ/BA5SQA4xSbQNzCGlirctWsPSh34roasddz4vHebZF
874OljNNcYxRtrwBMv6Q/1/BCbUai/K36gkswzEepn69VuvnAXHFmVXriu88QafJO7whMH4/mDWx
6u2KW7I7wC8R1lS6QtNXLwAAAABJRU5ErkJggg==
)
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAlCAYAAABLRGl/AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAD0SURBVEhL7ZU5FoUgDEWzLgqWY89OqFkILQux
YCn5hEFGRWks/J5j4XBuXp4vEXBwAADePs8Ao/vDd78EsAo5cFS2bhpueWBE/CqrAF/FoFhW8AfE
D/WqiT5EeUKFyem5F6SL0fwC4Gq1kTVf8CBMclooLkxcYbmU5h5QCo/o0Tw4SBHFKcAaU1W0ilcq
poAuxdTOEwUtwAjA9WGq/AjoBy1YVFy43dz+F/QWd/52PKH49tL7f4JXoLX270oGyOQeZDUAcr7s
m3KRrnMprySoKAFkWj9QuZVK6+Yqk4pRC2dLqQLskiEwuQ6gKqRiWUGS+QTwAxpeH5YEEwhjAAAA
AElFTkSuQmCC
)
=±
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACIAAAAbCAYAAAAZMl2nAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFQSURBVEhL7ZZBDoMgEEXnXC44jntu4pqDsOUg
LjjKdAZEEQfFxErSlNSkJXV8/D8fBBQGAODrVw1Emv/mHPxBCgV+VRGHGhQaf7+bHlXEaU5bbxCn
UbvuihCAduRHZxCnNSHw6AkSLEnN2Q3Eo1HycbDBtSXo0dTUrIlpouuE7hUQ1sQblVl4VOklELYw
NbRs1cMglX7wBtVF09wCWb0GWh2l5czzHCnawolaekUZLE+BRpCYDrUeIrFoWzJSspI18Xd5bxMI
K7FBhNajYo1nimAL17sPwoVKKaW5anuUaZEXAWjH5f10XEtx5tNgf49qlArVNi0hLZXeAmttqDIN
gMM0h+85yN6W1HBsi0f6nI/SFobgRhfu2pYelImq5CC0E6Fa3+q5SA5zvX1vSbuxs470QFZlB3L9
rEf+sUvNPA0Iw9QfhJfGqnRXJGncA+QDN57gYtYTAnMAAAAASUVORK5CYII=
)
=a
2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAASCAYAAAC5DOVpAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhPxZPBDYUgEES3Lg6Uw51OOFMIVwrx
QCnzXRAMfFAwJpKQKMj4ZocldAYR4dEcifXW79boEzGvD+vaDwGXyIKVuNDCgliAlRpjLiyIBQt5
hbWbnyZLFj10vjbSIjTVmxRjixxAtpneW9A5sY5FTveR2H+KTCZhG58Ep47WUaUC3Ern6KToNagT
Bjnn4jkjCMJs8bkSay2yUKldncCJEAkTXU0GlNvPSc52gNo/ZrpW7K7B836V5mYESJh3xPgPTPcK
WcGt0pw1CfwAhQGhg19DrjIAAAAASUVORK5CYII=
)
D.
相关试题
-
在下列各式中,化简正确的是( )
A.
=3![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADOSURBVDhP3ZRLDsQgCIY5lwuP456buPYgbj1I
Fx6FEcbHTMWknboakiaNyscPiECKAQA9/lZgbf3OGvwxOAeyYCnkOccc7OiJDcRHrpUiYXXUwImw
wj5DXgOLRwFoiktQTHMWD8GZgm1XE0voYQ/BA5SQA4xSbQNzCGlirctWsPSh34roasddz4vHebZF
874OljNNcYxRtrwBMv6Q/1/BCbUai/K36gkswzEepn69VuvnAXHFmVXriu88QafJO7whMH4/mDWx
6u2KW7I7wC8R1lS6QtNXLwAAAABJRU5ErkJggg==
)
B.
=±![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
C.
=a2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAASCAYAAAC5DOVpAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhPxZPBDYUgEES3Lg6Uw51OOFMIVwrx
QCnzXRAMfFAwJpKQKMj4ZocldAYR4dEcifXW79boEzGvD+vaDwGXyIKVuNDCgliAlRpjLiyIBQt5
hbWbnyZLFj10vjbSIjTVmxRjixxAtpneW9A5sY5FTveR2H+KTCZhG58Ep47WUaUC3Ern6KToNagT
Bjnn4jkjCMJs8bkSay2yUKldncCJEAkTXU0GlNvPSc52gNo/ZrpW7K7B836V5mYESJh3xPgPTPcK
WcGt0pw1CfwAhQGhg19DrjIAAAAASUVORK5CYII=
)
D.
-
在下列各式中,化简正确的是( )
A.
=3![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADOSURBVDhP3ZRLDsQgCIY5lwuP456buPYgbj1I
Fx6FEcbHTMWknboakiaNyscPiECKAQA9/lZgbf3OGvwxOAeyYCnkOccc7OiJDcRHrpUiYXXUwImw
wj5DXgOLRwFoiktQTHMWD8GZgm1XE0voYQ/BA5SQA4xSbQNzCGlirctWsPSh34roasddz4vHebZF
874OljNNcYxRtrwBMv6Q/1/BCbUai/K36gkswzEepn69VuvnAXHFmVXriu88QafJO7whMH4/mDWx
6u2KW7I7wC8R1lS6QtNXLwAAAABJRU5ErkJggg==
)
B.
=±![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
C.
=a2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAASCAYAAAC5DOVpAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhPxZPBDYUgEES3Lg6Uw51OOFMIVwrx
QCnzXRAMfFAwJpKQKMj4ZocldAYR4dEcifXW79boEzGvD+vaDwGXyIKVuNDCgliAlRpjLiyIBQt5
hbWbnyZLFj10vjbSIjTVmxRjixxAtpneW9A5sY5FTveR2H+KTCZhG58Ep47WUaUC3Ern6KToNagT
Bjnn4jkjCMJs8bkSay2yUKldncCJEAkTXU0GlNvPSc52gNo/ZrpW7K7B836V5mYESJh3xPgPTPcK
WcGt0pw1CfwAhQGhg19DrjIAAAAASUVORK5CYII=
)
D.
-
在下列各式中,化简正确的是( )
A.
=3![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADOSURBVDhP3ZRLDsQgCIY5lwuP456buPYgbj1I
Fx6FEcbHTMWknboakiaNyscPiECKAQA9/lZgbf3OGvwxOAeyYCnkOccc7OiJDcRHrpUiYXXUwImw
wj5DXgOLRwFoiktQTHMWD8GZgm1XE0voYQ/BA5SQA4xSbQNzCGlirctWsPSh34roasddz4vHebZF
874OljNNcYxRtrwBMv6Q/1/BCbUai/K36gkswzEepn69VuvnAXHFmVXriu88QafJO7whMH4/mDWx
6u2KW7I7wC8R1lS6QtNXLwAAAABJRU5ErkJggg==
)
B.
=±![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
C.
=a2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAASCAYAAAC5DOVpAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhPxZPBDYUgEES3Lg6Uw51OOFMIVwrx
QCnzXRAMfFAwJpKQKMj4ZocldAYR4dEcifXW79boEzGvD+vaDwGXyIKVuNDCgliAlRpjLiyIBQt5
hbWbnyZLFj10vjbSIjTVmxRjixxAtpneW9A5sY5FTveR2H+KTCZhG58Ep47WUaUC3Ern6KToNagT
Bjnn4jkjCMJs8bkSay2yUKldncCJEAkTXU0GlNvPSc52gNo/ZrpW7K7B836V5mYESJh3xPgPTPcK
WcGt0pw1CfwAhQGhg19DrjIAAAAASUVORK5CYII=
)
D.
-
在下列各式中,化简正确的是( )
A.
=3![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADOSURBVDhP3ZRLDsQgCIY5lwuP456buPYgbj1I
Fx6FEcbHTMWknboakiaNyscPiECKAQA9/lZgbf3OGvwxOAeyYCnkOccc7OiJDcRHrpUiYXXUwImw
wj5DXgOLRwFoiktQTHMWD8GZgm1XE0voYQ/BA5SQA4xSbQNzCGlirctWsPSh34roasddz4vHebZF
874OljNNcYxRtrwBMv6Q/1/BCbUai/K36gkswzEepn69VuvnAXHFmVXriu88QafJO7whMH4/mDWx
6u2KW7I7wC8R1lS6QtNXLwAAAABJRU5ErkJggg==
)
B.
=±![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
C.
=a2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAASCAYAAAC5DOVpAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhPxZPBDYUgEES3Lg6Uw51OOFMIVwrx
QCnzXRAMfFAwJpKQKMj4ZocldAYR4dEcifXW79boEzGvD+vaDwGXyIKVuNDCgliAlRpjLiyIBQt5
hbWbnyZLFj10vjbSIjTVmxRjixxAtpneW9A5sY5FTveR2H+KTCZhG58Ep47WUaUC3Ern6KToNagT
Bjnn4jkjCMJs8bkSay2yUKldncCJEAkTXU0GlNvPSc52gNo/ZrpW7K7B836V5mYESJh3xPgPTPcK
WcGt0pw1CfwAhQGhg19DrjIAAAAASUVORK5CYII=
)
D.
-
在下列各式中,化简正确的是( )
A.
=3![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAASCAYAAABfJS4tAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADOSURBVDhP3ZRLDsQgCIY5lwuP456buPYgbj1I
Fx6FEcbHTMWknboakiaNyscPiECKAQA9/lZgbf3OGvwxOAeyYCnkOccc7OiJDcRHrpUiYXXUwImw
wj5DXgOLRwFoiktQTHMWD8GZgm1XE0voYQ/BA5SQA4xSbQNzCGlirctWsPSh34roasddz4vHebZF
874OljNNcYxRtrwBMv6Q/1/BCbUai/K36gkswzEepn69VuvnAXHFmVXriu88QafJO7whMH4/mDWx
6u2KW7I7wC8R1lS6QtNXLwAAAABJRU5ErkJggg==
)
B.
=±![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
C.
=a2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAASCAYAAAC5DOVpAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADPSURBVDhPxZPBDYUgEES3Lg6Uw51OOFMIVwrx
QCnzXRAMfFAwJpKQKMj4ZocldAYR4dEcifXW79boEzGvD+vaDwGXyIKVuNDCgliAlRpjLiyIBQt5
hbWbnyZLFj10vjbSIjTVmxRjixxAtpneW9A5sY5FTveR2H+KTCZhG58Ep47WUaUC3Ern6KToNagT
Bjnn4jkjCMJs8bkSay2yUKldncCJEAkTXU0GlNvPSc52gNo/ZrpW7K7B836V5mYESJh3xPgPTPcK
WcGt0pw1CfwAhQGhg19DrjIAAAAASUVORK5CYII=
)
D.
-
下列计算正确的是( )
A.2a+3b=5ab
B.
+
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAjCAYAAACKPxqrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFTSURBVEhL7ZfbDcMgDEWZjJ1Yh2U8CqO4OAHz
CBAbtVE/UikfrQjH1+8afOhjHuLgH4LAoTHmfKzHoHSFTFHwaB2kqwEdwfi7jCgCBYBGQfBWrUoE
uthMbvyFoh4EzqCSs5F1Tbxk8aFTStcF9NZhTgs5RgkCZ9Fr8zpZI1ZEmdbEJSaEJk4iEAWfizUX
rdG5UATSxGJ29gVtezHGeBTo7/62UbDbgrSd4QUVD8jrSNlyeic/CMpLBy8caSfoF5CBIu6B9Vm6
b7C8JEU0Z2gEEKQ0y3EzzTWWztEgNO34AH/dkth1x8Kx6sjTGJFxNQjQD4ZWiRFZttrXlqCyQ4So
ZjSBGQRRUe+CJnOmIHJ7AkVj3WQEH6A8PXm7GV16A7JRiVt45GiqNluRM1Azo6OhZ9KsJ668jhZt
bpRl+wVbv8mJU8Xnpt/uKeJ/FvL1aw+0MS0+Yf8qSGxaySEAAAAASUVORK5CYII=
)
C.a8÷a4=a2
D.(x3)2=x6
-
(2006•临汾)下列运算正确的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEQAAAASCAYAAADixHhYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEwAAAASCAYAAADxEzisAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.a6÷a3=a2
D.(-2ab2)3=-8a3b6
-
(2006•临汾)下列运算正确的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEQAAAASCAYAAADixHhYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEwAAAASCAYAAADxEzisAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.a6÷a3=a2
D.(-2ab2)3=-8a3b6
-
(2006•临汾)下列运算正确的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEQAAAASCAYAAADixHhYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEwAAAASCAYAAADxEzisAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.a6÷a3=a2
D.(-2ab2)3=-8a3b6
-
下列运算正确的是( )
A.2a+3b=5ab
B.3a-2a=1
C.a•a=a2
D.a6÷a2=a3