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【单选题】
在制动系统中,制动所需的能源来源于()
A.
驾驶员的体能
B.
发动机动力
C.
A , B 均有
D.
A , B 均没有
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参考答案:
举一反三
【单选题】— I thought you were proud of the coat I ________. — I'm afraid not. You'd better change it for another. [     ]
A.
would wear
B.
had worn
C.
wore
D.
wear
【单选题】经济结构出现的重大变化,意味着过去几年来我们促进产业结构转型升级取得阶段性成果,也意味着中国经济进入了一个从高速增长阶段转向高质量发展阶段的历史性“( )”。
A.
窗口期
B.
瓶颈期
C.
飞跃期
D.
腾飞期
【单选题】最先发现肺炎链球菌转化现象的科学家是
A.
Griffith
B.
Avery
C.
Luria
D.
Lederberg
E.
Delbruck
【单选题】听力原文:M: If you're not too busy tonight, how about catching a movie? W: I thought you had to work on that big presentation you are making in front of the board members tomorrow. Have you already prepar...
A.
Today.
B.
Tomorrow.
C.
This Friday.
D.
Next week.
【单选题】I  thought you 1ike somethjngto read , so I have brought you some books .
A.
. may             
B.
. might           
C.
. could           
D.
. must
【单选题】—Did you take enough money with you? —No, I needed ______ I thought I would.
A.
not so much as
B.
as much as
C.
much more than
D.
much less than
【单选题】--What are you doing this weekend? --I haven't decided yet.____________? --Well, I thought we could have another family party.
A.
What
B.
All right
C.
Why
D.
Pardon
【单选题】最先发现肺炎链球菌转化现象的科学家是()。
A.
Griffith
B.
Avery
C.
Luria
D.
Lederberg
【判断题】大齿轮带动小齿轮转动,小齿轮速度快。
A.
正确
B.
错误
【单选题】I had never expected you to turn _______ at the meeting. I thought you were in Shanghai。
A.
around
B.
on
C.
in
D.
up
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