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【单选题】
升压变压器的变压比K 。A.
大于 1
B.
小于 1
C.
等于0
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反馈参考答案：
举一反三
【单选题】The manager ______ the worker how to do it, or the accident couldn’t have happened.
A.
couldn’t have told
B.
ought to tell
C.
could have told
D.
mustn’t have told
【单选题】When and where to enjoy our summer vacation _____ yet. [ ]
A.
aren't decided
B.
isn't being decided
C.
hasn't been decided
D.
haven't been decided
【单选题】—Where are you going for your holiday? —Well, we ______ yet. [ ]
A.
haven't decided
B.
hadn't decided
C.
don't decide
D.
didn't decide
【简答题】The
worker decided to finish the work on ____.A. contact B. schedule C. stress D. staff
【单选题】The old worker decided to ________ next year and moved back to the country.
A.
request
B.
retreat
C.
retire
D.
recommend
【单选题】The worker decided to finish the work on ____.
A.
contact
B.
schedule
C.
stress
D.
staff
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