2. 外语
  3. Please______from smoking until the aeroplane is airborne.

Please______from smoking until the aeroplane is airborne.

admin2018-10-19  57
问题 Please______from smoking until the aeroplane is airborne.
选项 A、refrain
B、prevent
C、resist
D、restrain
答案A
解析 refrain from表示“忍住，抑制，制止”，一般用法是refrain(sh．)from doing sth．，如：refrain from smoking(禁止吸烟)。
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