Bill is an example of a severely disabled person who has become______ at many survival skills.

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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 proficient at/in“精通……,对……掌握熟练”;persistent in“坚持……”;consistent with “与……一致”;sufficient in“在……方面充足”。无论从搭配还是从意思上看,都必须选A。
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