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【单选题】
在总指数的分解中,如果考虑共变影响,则数量指数和质量指数的同度量因素应( )。A.
分别选择为报告期、基期
B.
都选择为报告期
C.
分别选择为基期、报告期
D.
都选择为基期
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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
【单选题】To be elected to the Senate a person must______.
A.
be at least 25 years old
B.
be at least 30 years old
C.
have been a citizen for seven years
D.
be a lawyer
【多选题】Which of the following does the professor mention as the benefits of the study of fossils?[Clink on 2 answers. ]
A.
It provides information on how dinosaurs become extinct.
B.
It helps petroleum engineers with the finding of oil.
C.
It helps petroleum engineers to purify oil.
D.
It gives clues to how life originated and evolved.
【单选题】Which of the following did the woman NOT mention about the production of the armchairs?
A.
Time.
B.
Labor.
C.
Technology.
【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】Which of the following doesn't the woman mention as the way to get information?
A.
Television.
B.
Radio.
C.
Internet.
D.
All sorts of magazines.
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