2. 外语
  3. It is the responsibility of the police to______ law and order in the city.

It is the responsibility of the police to______ law and order in the city.

admin2017-04-12  51
问题 It is the responsibility of the police to______ law and order in the city.
选项 A、retain
B、sustain
C、restrain
D、maintain
答案D
解析 maintain vt.保持，维持；坚持，主张；维修，保养。retain vt.保留，保持，保有。sustain vt.支持；保持，使持续不息；供养，维持。restrain(from)vt.阻上，控制；抑制，遏制。
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