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【单选题】
多肽链中,连接氨基酸之间的化学键是A.
肽键
B.
氢键
C.
离子键
D.
范德华力
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反馈参考答案：
举一反三
【简答题】A．He's spoken to him on the phone. B．He stayed in his apartment one summer. C．He went on a summer trip with him. D．He used to work with him.
【单选题】听力原文：My apartment is on the tenth floor. (A) This is the right department. (B) His door is the one on the left. (C) You must get a good view from there. (29)
A.
B.
【单选题】She reached the top of the hill and stopped _____on a big rock by the side of the path
A.
to have rested
B.
resting
C.
to rest
D.
rest
【单选题】His apartment on the twenty-second floor ______ a little park.
A.
overlooks
B.
looks over
C.
takes over
D.
overtakes
【单选题】His apartment on the twenty-second floor ___ a little park.
A.
looks over
B.
takes over
C.
overtakes
D.
overlooks
【单选题】M: I haven’t seen Bob for such a long time. What do you think he’s doing these days? W: I saw him on the street the other day, and he said he had moved to a new apartment on the other side of town. Wh...
A.
In the city center.
B.
On the street.
C.
On the other side of town.
D.
In his new apartment
【单选题】Translation: The rent on his apartment was his biggest monthly expense.
A.
公寓租金是他每月最大的开销。
B.
公寓租金是他每月最大的收入。
C.
公寓押金是他每月最大的开销。
D.
公寓押金是他每月最大的收入。
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