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晶闸管斩波器有几种控制方式？各有什么特点？

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A.He is skilled and experienced.B.He is very close to the manager.C.He is always trying

A. He is skilled and experienced.
B. He is very close to the manager.
C. He is always trying to stir up trouble.
D. He is always complaining about low wages.

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A.He is always on time.B.He is a trustworthy guy.C.He is an experienced press operator.D

A. He is always on time.
B. He is a trustworthy guy.
C. He is an experienced press operator.
D. He is on good terms with his workmates.

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三菱plc中,16位的内部计数器,计数数值最大可设定为()

A. 32768
B. 32767
C. 10000
D. 100000

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下列不是小型PLC产品的是()

A. 三菱公司的F1.F2.FXO
B. 欧姆龙的欧姆龙的CPM*系列
C. 西门子的S7-400系列
D. 施耐德的Twido系列

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