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考研
Rejecting the urging of his physician father to study medicine, Hawking chose to ______ on math and theoretical physics.
Rejecting the urging of his physician father to study medicine, Hawking chose to ______ on math and theoretical physics.
admin
2010-01-13
58
问题
Rejecting the urging of his physician father to study medicine, Hawking chose to ______ on math and theoretical physics.
选项
A、impose
B、center
C、overwork
D、concentrate
答案
D
解析
辨义:A.impose征税,强加,可以用做impose sth.on; B.center集中;C.overwork过度工作;D.concentrate“集中注意力于,专心于”,后能直接跟介词on的动词只有center和concentrate,这两个词都有“集中”的意思。故选项A、C可排除。center on指谈话或讨论集中于问题的某一方面;而concentrate则是指集中所有的精力或注意力在一个方面,主语一般是人。
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