Please____from smoking until the aeroplane is airborne.

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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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