单选题:若函数调用时的实参为变量时,以下关于函数形参和实参的叙述中正确的是(  )。

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  • 题目类型:单选题
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题目内容:
若函数调用时的实参为变量时,以下关于函数形参和实参的叙述中正确的是(  )。 A.函数的实参和其对应的形参共占同一存储单元
B.形参只是形式上的存在.不占用具体存储单元
C.同名的实参和形参占同一存储单元
D.函数的形参和实参分别占用不同的存储单元

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