问题
单项选择题
Bill is an example of a severely disabled person who has become ______ at many survival skills.
A.proficient
B.persistent
C.consistent
D.sufficient
答案
参考答案: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。