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【简答题】
研究文献综述的撰写要注意哪些问题？
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举一反三
【单选题】_______as an Olympic event, a sport must be played in at least 75 countries on at least 4 continents.
A.
To accept
B.
Having accepted
C.
To be accepted
D.
Accepting
【简答题】A．At least once a month. B．At least twice a month. C．At least once a year. D．At least twice a year.
【单选题】The lazy boy ate the _____ food, but did the _____ work. [ ]
A.
most, most
B.
least, least
C.
least, most
D.
most, least.
【单选题】Which of the following does the passage mention as necessary for both the production of oxygen by photodissociation and the production of oxygen by plants?
A.
Water
B.
Hydrogen
C.
Carbon dioxide
D.
Nitrogen
【单选题】---Thank for the ride home! -----______, which of the following is wrong?
A.
Don’t mention it.
B.
Not to mention
C.
Not at all
D.
That’s all right.
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