专四

单选题 Bill is an example of a severely disabled person who has become __________ at many survival skills．

A．proficient
B．persistent
C．consistent
D．sufficient

参考答案：A进入在线模考
A。比尔是严重残疾人中的榜样，他精通多种生存技能。
考查形容词辨析。proficient意为“精通的”；persistent意为“坚持不懈的”；consistent意为“一致的”；sufficient意为“充足的”，故A符合句意。

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