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(2002•济南)下列各式中,计算过程正确的是( ) A.x3+x3=x3+3=...
(2002•济南)下列各式中,计算过程正确的是( )
A.x3+x3=x3+3=x6
B.x3•x3=2x3=x6
C.x•x3•x5=x0+3+5=x8
D.x2•(-x)3=-x5
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