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【多选题】
如图所示系统,则( )。A.
其闭环传递函数
B.
调节时间ts=0.3s(Δ=5%)
C.
单位阶跃响应终值为1
D.
系统没有超调
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【简答题】一般上班时男士都会佩戴领带,领结则是比较少,而传统上,( )仍被用作配衬燕尾礼服,它被认为是唯一正统的领口衣饰。
【简答题】阅读短文，回答问题。 Lucy: Excuse me, Li Fen. Where's our school shop? Do you know? Li Fen: Yes. It's over there, behind the teachers' room. Lucy: I'd like something to drink. Please go with me. OK? Li Fen: OK....
【判断题】领结是一种衣着服饰,通常与较隆重的衣着如西装或礼服一起穿著,一般上班时男士都会佩戴领带。领结则是比较少,而传统上,领结仍被用作配衬燕尾礼服,它被认为是唯一正统的领口衣饰。
A.
正确
B.
错误
【单选题】Hedges are used in scientific writing due to the following reasons except ______________.
A.
authors tone down their statements in order to reduce the risk of opposition
B.
authors try to appear humble rather than arrogant or all-knowing
C.
hedges are considered as a strategy of being more precise in reporting results
D.
hedges are used as a strategy to present unproven claims with certainty
【单选题】When you post a letter, you must buy ______ .
A.
a ten-fen stamp
B.
a new stamp
C.
a twenty-fen stamp
D.
a stamp worth 10 fen or more
【单选题】____________ of the hedges _______ usually burnt.
A.
the clipping, was
B.
the clippings, was
C.
the clippings, were
D.
the clipping, were
【简答题】Doo rs , hedges, fences: these physical features of a German home reflect an emphasis on __________, which is pervasive throughout German life.
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