Tim is dubious about diet pills which advertise quick weight loss.(2003年中国社会科学院考博试题)

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问题 Tim is dubious about diet pills which advertise quick weight loss.(2003年中国社会科学院考博试题)

选项 A、anxious
B、pessimistic
C、doubtful
D、ignorant

答案C

解析 本题中,dubious的意思是“可疑的,不确定的”。C项“doubtful怀疑的”符合题意,如:be(feel)doubtful of(about)the data(怀疑那些数据)。其他三项“anxious担忧的;pessimistic悲观的;ignorant无知的”都不正确。
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