Please____from smoking until the aeroplane is airborne.

admin2012-06-18 33

问题 Please____from smoking until the aeroplane is airborne.

选项 A、refrain
B、prevent
C、resist
D、restrain

答案A

解析各项的意思是：refrain“节制，克制；避免；制止”，refrain from“忍住，抑制，制止”，一般用法是restrain(sb．)from doing sth．；prevent“预防，防止”；resist“抵抗；忍耐”；restrain“抑制，约束；制止”。根据句意判断，答案为A。

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