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【单选题】
下列各种含氢化合物分子间不含有氢键的是A.
CH 4
B.
H 2 O
C.
H 3 BO 3
D.
HF
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反馈参考答案：
举一反三
【单选题】I don’t like Tom’s way of behaviour, but ________ I admire his great knowledge.
A.
in other words
B.
on the other hand
C.
for one thing
D.
as a matter of fact
【简答题】Like other 3 Great Civilizations, the origin of Chinese characters are also ______________.
【单选题】Einstein, like other great physicists before him, worked out new theories that challenge our ______ concept of the universe.
A.
existed
B.
established
C.
organized
D.
adjusted
【单选题】I don’t like Tom’s way of behavior, but ________ I admire( 钦佩) his great knowledge.
A.
in other words
B.
on the other hand
C.
for one thing
D.
as a result
【单选题】I like English. I like Chinese _____. [ ]
A.
on the other hands
B.
at the same time
C.
in other parts of the world
D.
on other words
【单选题】汽车在行使过程中,由于驾驶员未系安全带,车辆会持续发出警报声,直到驾驶员系上安全带警报声才会消失,这属于()强化;监狱会给表现良好的犯人减刑,这属于()强化。
A.
正正
B.
负负
C.
负正
D.
正负
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