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【单选题】
I usually sleep with the window open _____ it's very cold. [     ]
A.
until
B.
unless
C.
as
D.
if
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【简答题】什么叫同步观测环和异步观测环?
【单选题】一个完全竞争厂商在短期均衡时可能是( )
A.
AVC下降
B.
AC下降
C.
MC下降
D.
一可变要素的平均产量上升
【单选题】如果环中的各条基线是同时观测的,就叫()
A.
同步观测
B.
同步环
C.
异步观测
D.
异步环
【单选题】You like travelling, _____ you?
A.
don’t       
B.
won’t       
C.
didn’t      
D.
haven’t
【简答题】If you don’t like to swim, you _____as well stay at home. A)should            B)may            C)can             D)would
【单选题】听力原文:Woman: If you don't like it, you don't have to take it. Man: Thanks, but I like it. Question: What will the man probably do? (2)
A.
He'll take it because he likes it.
B.
He'll take it even though he doesn't like it.
C.
He won't take it because he doesn't like it.
D.
He won't take it even though he likes it.
【单选题】—Do you like the novels? —I don’t like either of them . Pleaseshow me third one .
A.
. a               
B.
. the                
C.
.不填
D.
. an
【单选题】若简支梁上的均布载荷用静力等效的集中力来代替,而梁的最大弯矩值将( )原受载荷梁的最大弯矩值。
A.
大于
B.
相等
C.
小于
D.
无法判断
【单选题】一个完全竞争厂商在短期均衡时可能是()
A.
AVC下降阶段
B.
AC下降阶段
C.
MC下降阶段
D.
可变要素的平均产量上升阶段
【单选题】—________________? —No, I don’t. I don’t like fights in them.
A.
Do you like romantic films?
B.
You don’t like action films, do you?
C.
Do you like romantic films or action films?
D.
Why don’t you like action films?
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