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(2003•海淀区模拟)(-2)2的相反数是A.4B.C.D.-4
试题详情
(2003•海淀区模拟)(-2)
2的相反数是( )
A.4
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAjCAYAAACdHYpiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACjSURBVEhL7ZXbDYAwCEWZjJ1Yh2UYhVGQ+mqN
qVWa+Ei0afzyyCWnFKzzgc7v7UaAsiGgsW5rPleBkAGA7yhg/KkY/YBP92CUKHkwbZIs0zmRDg7M
CwBCOduScX2XYSsxmhF20KKZidkEtAbO5wBqjB0iKWOHia4zsUQr8NKJTX2FIggtwzQC8ImchQwA
aqrjfEFcFClQwVbl5wH7o3WxB28EDOOfLI4GxsAUAAAAAElFTkSuQmCC
)
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACKSURBVDhP3ZPdDcAgCISZjJ1Yh2UYhVEoahv7
I9IH04eaGF8ud/odgiULFgqUDQGN9erZIoQMAHxHgqYy+rmgQioc2ibpsFZ2EdSaRxwXG53FNHdY
OFHVSo1xAkoZJyQdN7FEDm5N7AFBhNAxrCOBT3RvbyAQ6jWfaeL+QW4kk2emHF4Ins180OYGTajm
K+eV5lcAAAAASUVORK5CYII=
)
D.-4
相关试题
-
(2003•海淀区模拟)(-2)2的相反数是( )
A.4
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAjCAYAAACdHYpiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACjSURBVEhL7ZXbDYAwCEWZjJ1Yh2UYhVGQ+mqN
qVWa+Ei0afzyyCWnFKzzgc7v7UaAsiGgsW5rPleBkAGA7yhg/KkY/YBP92CUKHkwbZIs0zmRDg7M
CwBCOduScX2XYSsxmhF20KKZidkEtAbO5wBqjB0iKWOHia4zsUQr8NKJTX2FIggtwzQC8ImchQwA
aqrjfEFcFClQwVbl5wH7o3WxB28EDOOfLI4GxsAUAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACKSURBVDhP3ZPdDcAgCISZjJ1Yh2UYhVEoahv7
I9IH04eaGF8ud/odgiULFgqUDQGN9erZIoQMAHxHgqYy+rmgQioc2ibpsFZ2EdSaRxwXG53FNHdY
OFHVSo1xAkoZJyQdN7FEDm5N7AFBhNAxrCOBT3RvbyAQ6jWfaeL+QW4kk2emHF4Ins180OYGTajm
K+eV5lcAAAAASUVORK5CYII=
)
D.-4
-
(2003•海淀区模拟)(-2)2的相反数是( )
A.4
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAjCAYAAACdHYpiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACjSURBVEhL7ZXbDYAwCEWZjJ1Yh2UYhVGQ+mqN
qVWa+Ei0afzyyCWnFKzzgc7v7UaAsiGgsW5rPleBkAGA7yhg/KkY/YBP92CUKHkwbZIs0zmRDg7M
CwBCOduScX2XYSsxmhF20KKZidkEtAbO5wBqjB0iKWOHia4zsUQr8NKJTX2FIggtwzQC8ImchQwA
aqrjfEFcFClQwVbl5wH7o3WxB28EDOOfLI4GxsAUAAAAAElFTkSuQmCC
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACKSURBVDhP3ZPdDcAgCISZjJ1Yh2UYhVEoahv7
I9IH04eaGF8ud/odgiULFgqUDQGN9erZIoQMAHxHgqYy+rmgQioc2ibpsFZ2EdSaRxwXG53FNHdY
OFHVSo1xAkoZJyQdN7FEDm5N7AFBhNAxrCOBT3RvbyAQ6jWfaeL+QW4kk2emHF4Ins180OYGTajm
K+eV5lcAAAAASUVORK5CYII=
)
D.-4
-
(2003•海淀区模拟)分式
的值为0,则x的值是( )
A.-3
B.3
C.±3
D.-1
-
(2003•海淀区模拟)不等式组
的解是( )
A.-3<x<0
B.-2<x<0
C.x>-2
D.x<0
-
(2003•海淀区模拟)分式
的值为0,则x的值是( )
A.-3
B.3
C.±3
D.-1
-
(2003•海淀区模拟)计算
的结果是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFdSURBVFhH7ZbBrcMgDIY9Vw6Mkzub5MwguTJI
D4ziYqDUpKUy8EKeqkZKVammH/792wB44QMXsvGfwJ1BBQqNm6dFzNxqBAD/XgGPO0D9g08qO3P7
l8gezSt4nwr/XeYEljynyN4GDwPmKZO2kn3XY9rgY6yX1S9wnhzLTFacxs2VcO8lZTBObfIV4IN/
Pty5BI4ZWN0Ap+Bq21TMUa05nSFc9k/92Kh2Dn8Hz0nMrTlLIRlPpXP7/Jof5HNGISQDjsP3NXli
/Sh7/pHV/XCZ8ObKbSGr+L7vIXBbAJftFr7Xh4xDo7jbqQ7ZBLEPuSNlW/BRQYGYfQHPt6TYNbxB
wFlb9CGviRicAlf/55R9/3g99GLLBm7bgrBs/XA+gVrAj1jKvi/zov496LimA05O1H70z3tyn1s9
984eFKIPcnhxRnjTjV4oJPrB+1Nrjvzj41WSYiXmBx8Qr3/pHedqwEjk1SWbAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC7SURBVDhPvZPZEYAwCESpjJ5oJ81QCqUgmBgh
ifqhY2Ycj3Cs7Avow4KPAqQoAij4RZyKWgtWwqKyf7ZnC4oxoCJtsyYyjQGxINOqxZl5oSGUaGKx
VEW+pjlIQYUuehFgKpOOoYJowfEvPOMY0jCDpYbRm6/MuvHc9DUXF/dfRcZhBR+qBnewI1SJitiB
MCei3rr5xGTSMxHlLJCBn1d3kwk1oJiZdOXpQNlcjnfwgzIbdrb6A5gbmPatDZps4PCLzCp3AAAA
AElFTkSuQmCC
)
D.
-
(2003•海淀区模拟)因式分【解析】
y(2x-y)-x2+z2=________.
-
(2003•海淀区模拟)若点P(m,3-m)在第二象限,则m的取值范围是( )
A.m<0
B.0<m<3
C.m>0
D.m>3
-
(2003•海淀区模拟)若关于x的方程的解
为正数,则实数m的取值范围是( )
A.m<![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACnSURBVDhPxVPBEcAgCGMydmIdlnEURqFYi1eF
2kd7LXc+5GKIJoLeFLwDKAQKMC4qjRtUWPnYtJYoIypLB4i1TmUHELn3gkhhVPTj+4ihRvqmYUEf
ADP9BIj0I2BS75O7how+ikyMecmsleVmYnTSe/+IrM8N6mlKzaoCc4B5QZa9CwajphqzixGFPKQZ
oNBpZgLI/kQV6sFNQru4Zvs0zwDR+A8StQEJo+lRad0xGwAAAABJRU5ErkJggg==
)
B.m>![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACnSURBVDhPxVPBEcAgCGMydmIdlnEURqFYi1eF
2kd7LXc+5GKIJoLeFLwDKAQKMC4qjRtUWPnYtJYoIypLB4i1TmUHELn3gkhhVPTj+4ihRvqmYUEf
ADP9BIj0I2BS75O7how+ikyMecmsleVmYnTSe/+IrM8N6mlKzaoCc4B5QZa9CwajphqzixGFPKQZ
oNBpZgLI/kQV6sFNQru4Zvs0zwDR+A8StQEJo+lRad0xGwAAAABJRU5ErkJggg==
)
C.m<![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.m<-1
-
(2003•海淀区模拟)如图,△ABC中,CD⊥AB,BE⊥AC,
=
,则sinA的值为( )![](https://img.xintiku.com/upload/e0/e3/e0e39e235478d8993096095ff7ef6601.png)
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADCSURBVDhPvVLbEcMgDPNk7OR1WMajMIqKecUG
Cv3INXf5IBGSbIlweeglgDCIqL4hIhlaQooILO2TgBU0zgAlEXcjxeBYVpMqZxnmKYQJ5j88g/NT
rxpAQgyMbrczD4BwQLTzNUQBqHOri2y0n0lNjSX1ZdEj9VYWh0jvEqvBx/S0qL3OXeLnypUebFrV
JHKTpqr5sMzuZ8nMoDH30Q5x680anI99GbOYPXUy8zjDm0VlwLnVswdt8miSr/y/w/qW6gfMluX4
0Pz+KwAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFNSURBVEhL7ZVNDoQgDIV7Lhccxz03cc1B3HKQ
WXCUDq06ghQBxWQyGRITw8/Xx6MUQKEBAN79CAs5uNTf2vfrcKv3M9A2dccZVKDQuHiobAst3IAM
AVQh5RP4AtxZi6EgZxSCMlEfokV9SfnRBFL6FJyUR7Zw8C7KPSRRfQafxzUTxo8BdDulZrX2GsUR
2fN5nnn2NAAO04v/JTjZIWXhEqpkC+9gUZ/A/SEe0y8OVIJ76OjtIPUhnFMvKWSBPWvub3PCoJG5
r2lAGCbRltaixQ4cF5H63IG2Bihf/1ZiMF/OuRvAcKl34P6rIzFEzzuJXlK6J+zI+g54dJnE4pV6
UKk8Vw3PTa2D+9qSL1r5ABVwh0Zt6ZoruXKACvi+0GoKkj7EOe1NcILwwVZ61Aznh6FvtoQb9/Cn
lFvd0/OTl6ZUOi54XkLu43+46NUbgvac/Io7GcUAAAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAkCAYAAABixKGjAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFUSURBVEhL7ZbLDYMwDIY9F4eMwz2bcM4gXDNI
DxnFjUMfdmIwASpVVZEqVXl8/vPH2AAqDwDg2R9hYQ2ujfeO/To8+vcd+Ni6kwI6cBiSnLJtoY1P
YIEAOk55BT4ATzEiF5SCQ3BBjCFG9IeU1yaQ0k/BSbmwpQS/RHmGNKq34PP4yITxZQC9ndoTvc8a
1Rnd83mey+ppABymW/mvwckOLQuXUJYt5QSL+gaeL7FOPxnIgmfomO0g9RxeUq8pZMyeR+4/1/Cg
wtzbNCAMk2pLb9EqDtSbSP3ahfYGsF//XiJbr+fcCSDfmh0433U0hur5RaKXlL4SVrO+AM47kVq4
9PPbynknKjUkJ8B6kRFRTPi+TnRUeb2PLLpKecuGjdIrV5u2iOXCfzuJO+AJg1vrRCc9j779LrG0
71LetLh8qXvu1IRHrxW2ffaYcOvoW/N/uOrOHSXeln8be/6NAAAAAElFTkSuQmCC
)
D.