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【单选题】
研究在产出水平给定的条件下，什么样的产品组合才能最大限度地满足社会的要求和愿望的问题属于（）。A.
交换效率问题
B.
生产效率问题
C.
产品组合效率问题
D.
帕累托效率问题
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【单选题】The Ancient Olympic games were not international events even though the athletes traveled to compete from different parts of the world.
A.
Y
B.
N
C.
NG
【简答题】完形填空。 The ancient Olympic s were religious (宗教的) activities. 1 held the first Olympic s in the sixth century B. C. At that time, men could be 2 the races. Women had no 3 to take part in the Ol...
【单选题】-- I rang you several times yesterday, but couldn’t ______ . -- I’m sorry, but my phone didn’t work.
A.
go through
B.
go over
C.
get through
D.
get across
【单选题】—Could you come to my birthday party? —Sorry, I ________.
A.
couldn’t
B.
can’t
C.
can
【单选题】— Sorry, I couldn’t come to the party. I was sick that day. — ____.
A.
I don’t know that
B.
That’s all right
C.
Yes, we’ll have another party
D.
No, the party wasn’t held
【简答题】靠近猪胃贲门和幽门的粘膜分别是（）和（）。
【简答题】The history of the s Olympia Olympia, the site of the ancient Olympic s, is in the western part of the Peloponnese which, according to Greek mythology, is the island of 'Pelops', the founder o...
【单选题】-I'm sorry, but there's no smoking in this section on the train. -Oh, I ________ that, and I won't again. [ ]
A.
don't know
B.
didn't know
C.
won't
D.
haven't known
【单选题】．Sorry, I couldn’t help _________ the house, because I was busy making a cake.
A.
cleaning
B.
clean
C.
cleaned
D.
cleans
【单选题】Bob: Sorry, I couldn't come to the party. I was sick that day. Harry: ______
A.
It's OK with me.
B.
Don't be sorry, we'll have another party.
C.
Not at all.
D.
I don't care it.
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