问题
单项选择题
In C language, (70) variables have to be defined outside of any function, this (71) actual storage for it.
A．internal
B．export
C．output
D．external
答案
参考答案：D
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In C language, (70) variables have to be defined outside of any function, this (71) actual storage for it.
A．internal
B．export
C．output
D．external
参考答案：D
