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【单选题】
一阶系统(惯性环节) 时间常数 T 越小,则系统的响应曲线达到稳态值的时间( )。A.
越短
B.
越长
C.
不变
D.
不定
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【简答题】A. Who won? B. What was the score? C. Why don't we go to the Haidian Gym? D. I'll be ready in a minute E. I'll join in the next time F. I wanted to go, but I couldn't. G. I'll make sure and make ...
【简答题】A. I COULDN'T AGREE MORE. B. WHAT ELSE? C. ONCE WE SEPARATE AND RECYCLE THEM. D. BUT I HAVE A CONCERN. E. THAT IS REALLY A GREAT ADVICE. Peter: Molly, look at this. The newspaper says we should sort t...
【单选题】We put _____ our tent and began to sleep in it, but I really couldn't put _____ the heat in the tent. [ ]
A.
up; off
B.
up; up with
C.
on; out
D.
over; into
【单选题】We couldn't really afford to buy a house so we got it on fore purchase and paid monthly ______.
A.
investments
B.
requirements
C.
arrangements
D.
installment
【单选题】We couldn't really afford to buy a house so we got it on hire purchase and paid mothly ____.
A.
investments
B.
requirements
C.
arrangements
D.
installments
【单选题】—In those days, TVs were really expensive, and I couldn't . —Neither could we. [ ]
A.
afford ones
B.
afford one
C.
buy it
【单选题】Amy: Tony says we have to work late tonight.
A.
You can't be serious!
B.
Don't let it get to you.
C.
How dare you?!
【单选题】It is really a wonder. We just couldn't believe the new station ________ so big and spacious, full of all kinds of modern facilities we can think about.
A.
should be
B.
would be
C.
was
D.
should have been
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