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【单选题】
It’s not easy for us__________ English well.
A.
study
B.
to study
C.
studying
D.
studies
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【简答题】类比平面上的命题(m),给出在空间中的类似命题(n)的猜想.(m)如果△ABC的三条边BC,CA,AB上的高分别为ha,hb和hc,△ABC内任意一点P到三条边BC,CA,AB的距离分别为Pa,Pb,Pc,那么paha+pbhb+pchc=1.(n)______.
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【单选题】The man ________ black trousers ________ cool.
A.
in; look
B.
on; looks
C.
with; looks
D.
in; looks
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【单选题】Please ________ the meat and I want to make some dumplings.
A.
cut up
B.
cut down
C.
put up
D.
blow out
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【单选题】已知随机变量X~B(n,0.8),D(X)=1.6,则n的值是( )
A.
8
B.
10
C.
12
D.
14
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【单选题】-I called you at nine this morning, but there was no answer. - Oh, sorry. I _______ with my cousin in the supermarket.
A.
shop
B.
was shopping
C.
will shop
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【单选题】We mustn’t be nervous when we are in danger.We should cool.We mustn’t be nervous when we are in danger. We shouldcool.
A.
take
B.
stay
C.
live
D.
make
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【多选题】发行人的( )应当对招股说明书出具确认意见,并签名、盖章。
A.
保荐机构
B.
保荐代表人
C.
控股股东
D.
实际控制人
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【单选题】The old man got on the bus, but nobody _____ for him.[ ]
A.
made a space
B.
made spaces
C.
made space
D.
made a room
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【单选题】I'm writing _____ my friend. [ ]
A.
to
B.
for
C.
at
D.
on
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【单选题】The police worked day and night so that they could____the murder.[ ]
A.
find
B.
find out
C.
look
D.
look for
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