Bill is an example of a severely disabled person who has become______at many sur

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问题 Bill is an example of a severely disabled person who has become______at many survival skills.

选项 A、proficient
B、persistent
C、consistent
D、sufficient

答案 A

解析 固定搭配。proficient意为“精通,熟练”,可后接介词at,表示在“某方面精通”。故答案为A。persistent“不屈不挠的,执拗的”,只能与介词in搭配;consistent“始终如一的,一致的”;sufficient“充分的,足够的”。
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