下列选项巾正确的定义语句是( )。A.doublea;b;B.doublea=b=7;C.doublea=7,b=7;D.double,a,b;

下列选项巾正确的定义语句是( )。

A.doublea;b;

B.doublea=b=7;

C.doublea=7,b=7;

D.double,a,b;


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