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【判断题】
对于某一开单控开关,在接线过程中,火线应从接线桩L进入,零线从L1引出。A.
正确
B.
错误
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举一反三
【单选题】听力原文： Cambridge is about 86 kilometres northeast of London. It is one of the most beautiful places in Britain. Everything about the city of Cambridge reminds you of its famous university: student on b...
A.
Watching traditional plays.
B.
Visiting the magnificent libraries.
C.
Boating on the river.
D.
Cycling in narrow streets.
【单选题】听力原文： 'Where is the university?' is a question many visitors to Cambridge ask, but no one now could point them in any one direction because there is no campus. The university consists of thirty-one se...
A.
Because there are no signs to direct them.
B.
Because no tour guides are available.
C.
Because all the buildings in the city look alike.
D.
Because the university is everywhere in the city.
【单选题】听力原文： 'Where is the university?' is a question many visitors to Cambridge ask, but no one can give them a clear answer for there is no wall to be found around the university. The university is the cit...
A.
To see Cambridge University.
B.
To study in the colleges in Cambridge.
C.
To use the libraries of the university.
D.
To visit the professors there.
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