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【判断题】
集线器连接的网络为共享介质以太网。A.
正确
B.
错误
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【简答题】PLC 专为工业场合设计,采用了典型的计算机结构,主要是由哪几部分构成 ?
【简答题】A rich man was camping（露营） alone on a hill. One day it began to rain and the rain made the tent（帐篷）wet. At last he 16 make his way home. As he passed(经过) 17 beautiful house he wanted to look 18 rest. ...
【单选题】The man volunteers to help out in the food tent because _____.
A.
everybody loves to eat
B.
he is a gourmet
C.
it is a great chance to socialize
D.
his friends also offer to help out there
【简答题】PLC专为工业场合设计，采用了典型计算机结构，主要由___、___、___、和专门设计的___等组成。
【简答题】A tall figure appeared from the dark door of the tent. It was a smoking young man about twenty three or four. He had an almost black face, though smooth. His moustache was black with curled points. Th...
【简答题】员工在职业交往活动中，尽力在服饰上突出个性是符合仪表端庄具体要求的。（ ）
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