设a="Microsoft Visual Basic",则以下使变量b的值为Visual Basic的语句是A.b=LeR(a,10)B.b=Mid(a,10)C.b=Right(a,10)D.b=Mid(a,11,10)
设a="Microsoft Visual Basic",则以下使变量b的值为Visual Basic的语句是
A.b=LeR(a,10)
B.b=Mid(a,10)
C.b=Right(a,10)
D.b=Mid(a,11,10)
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