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【判断题】
反馈控制又称偏差控制,其控制作用不是通过给定值与反馈量的差值进行的A.
正确
B.
错误
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举一反三
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【单选题】下面是对字符数组str的初始化语句,其中不正确的是( )。
A.
char str[5]={“abcd”};
B.
char str[5]={‘a’,’b’,’c’,’d’};
C.
char str[]=”abcd”;
D.
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