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【单选题】
以下哪个原因不会造成汽车的发动机冷却系统泄漏。A.
气缸垫损坏
B.
水套侧盖衬垫损坏、螺钉松动或螺钉未按规定顺序紧固
C.
机体上的封水不严
D.
在天气炎热或高原地区长时间行驶
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皮皮学刷刷变学霸
举一反三
【简答题】我们对出席派对人数的估计与实际来的人数相差了一大截。
【多选题】提出并证实了操纵子( operon )作为调节细菌细胞代谢的分子机制的是
A.
Andre Lwoff
B.
Francois Jacob
C.
Jacques-Lucien Monod
D.
Severo Ochoa
【简答题】When I was in primary school, I had a big argument a boy in my class. l can't remember what it was about, but I have never forgotten the lesson I learned that day. I was that I was right and he was w...
【简答题】我们对出席派对人数的估计与实际来的人数相差一大截。
【单选题】what does "big boy issue" mean ?
A.
fight among boys
B.
football games
C.
marriage with girls
D.
political affairs
【多选题】提出并证实了操纵子(operon)作为调节细菌细胞代谢的分子机制的是()。
A.
Severo Ochoa
B.
Francois Jacob
C.
Jacques-Lucien Monod
D.
Andre Lwoff
【简答题】When I was in primary school, I had a big argument with a boy in my class. I can’t ____ what it was about, but I have never forgotten the ____ I learned that day. I was sure that I was right and he wa...
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