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

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

选项 A、stated
B、writed
C、illustrated
D、declared

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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