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外语
Jane has to become______at mathematics to be successful as an engineer.
Jane has to become______at mathematics to be successful as an engineer.
admin
2014-01-13
56
问题
Jane has to become______at mathematics to be successful as an engineer.
选项
A、experienced
B、outstanding
C、prominent
D、proficient
答案
D
解析
A项意为“有经验的,老练的”;B项意为“杰出的,未解决的”;C项意为“杰出的,显著的”;D项意为“精通的,熟练的”。本句意为简要成为成功的工程师,就必须精通数学。be proficient at意为“精通于”,D项符合题意。
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