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【单选题】
对下颌第三磨牙进行钳拔脱位时,应先向A.
颊侧用力
B.
舌侧用力
C.
垂直用力
D.
近中用力
E.
远中用力
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反馈参考答案：
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
【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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