In C program, all variables must be(70)before use, usually at the beginning of the functio

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In C program, all variables must be(70)before use, usually at the beginning of the function before any(71)statements.

A.stated

B.writed

C.illustrated

D.declared

参考答案:

D解析:译文:在一段C程序中,所有变量在使用前必须声明,通常在函数的可执行语句之前声明。

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