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【单选题】
二次回路交流耐压试验电压为1000V。当回路绝缘电阻值在10MΩ以上时,可采用()V伏摇表代替,试验持续时间为1min。A.
2500
B.
1000
C.
5000
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A.
char < int=long int <=float < double
B.
char = int < long int <=float < double
C.
char < int < long int=float=double
D.
char = int = long int <= float < double
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【单选题】在C语言中(以32位PC机为例) ,5种基本数据类型的存储空间长度的排列顺序为 。
A.
char
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char=int
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char
D.
char=int=longint<=float
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