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【单选题】
以下不是 PLC 硬件故障类型的是( ) 。A.
I/O 模块故障
B.
电源模块故障
C.
CPU 模块故障
D.
状态模块故障
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反馈参考答案：
举一反三
【简答题】生态平衡失调的标志是（）和生态平衡失调的功能标志。
【简答题】什么是生态平衡失调?生态平衡失调的标志是什么?
【简答题】回答11~15题： Job Advertisement Ourcompany is Sun life Insurance Company，and our legal department requires a mature， What is the name on thecompany? _______________________________________________________...
【单选题】The dean of our department asked that all the students______ at the reception this afternoon in order to meet the representatives form. other colleges.
A.
are present
B.
will be present
C.
would be present
D.
be present
【单选题】The dean of our department won't ______a lesson tomorrow morning, because he has asked for a sick leave.
A.
be given
B.
be giving
C.
have given
D.
have been giving
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