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(2009•郴州)下列各式计算不正确的是A.-(-3)=3B.=2C.(3x)3=9x3D...
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(2009•郴州)下列各式计算不正确的是( )
A.-(-3)=3
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACdSURBVDhP1ZIxDgQhCEU5l4XHsecm1hzEloNM
wVFY0F2TmTiJ2K3Ghvj8/yOgiwUAunXe4FX9WYN/gUUpgyIPvyHbQrk3Mg4LKRKfKJtdJBXbYduM
WUk8ZRRmnBnDMON62rJZAW3lO4plzot3dL0etltr/V5NoKle4/924anQHQz1OGxQMUVXf4fvYW7h
rpoUUj2D/V1XP1L+mdqFP6uplFTsg5j9AAAAAElFTkSuQmCC
)
=2
C.(3x)
3=9x
3D.2
-1=
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(2009•郴州)下列各式计算不正确的是( )
A.-(-3)=3
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C.(3x)3=9x3
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(2009•郴州)下列各式计算不正确的是( )
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下列各式计算不正确的是( )
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下列各式计算不正确的是( )
A.-(-3)=3
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