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【单选题】
安装调试加工中心时,数控系统CRT上显示器突然出现无显示故障,而机床还可继续运转。停机后再开,又一切正常,产生这种故障的原因可能是( )。A.
系统参数有误
B.
电源功率不够
C.
系统文件被破坏
D.
显示电路板上某个集成块的没有完全插入插座中
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举一反三
【简答题】The phrase 'ring up sales' (Sentence 2, Para.2) most probably means ______.
【简答题】FOR USE ONLY IN CASE OF FIRE________________________________
【单选题】For which type that Empson talked about the double entendre?
A.
the third
B.
the fifth
C.
the seventh
D.
the second
【判断题】The strong axiom of revealed preference requires that if a consumer chooses x when he can afford y; and chooses y when he can afford z; then he will not choose z when he can afford x.
A.
正确
B.
错误
【简答题】“Target”in Paragraph 2 most probably means_________
【单选题】In paragraph 2, 'it is not a far stretch to believe that' is most similar in use to______.
A.
it is sometimes believed that
B.
the most likely conclusion is that
C.
it logically follows that
D.
it is not unreasonable to believe that
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