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【多选题】
加强国家安全能力建设,要坚持( )。A.
科技引领
B.
法治保障
C.
文化支撑
D.
经济助力
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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】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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