问题
单项选择题
In C language, external variables have to be defined (54) function, this (55) actual storage for it.
A．in
B．out
C．inside
D．outside
答案
参考答案：D
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In C language, external variables have to be defined (54) function, this (55) actual storage for it.
A．in
B．out
C．inside
D．outside
参考答案：D