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【单选题】
S7-200PLC中,比较指令操作数类型D指的是?A.
整数比较
B.
字符串比较
C.
双整数比较
D.
字节比较
E.
实数比较
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A.
New Year Card
B.
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A.
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B.
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D.
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A.
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B.
错误
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A.
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B.
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C.
the beginning of giving big parties
D.
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