公路工程ppt模板:一道英语高考题

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I was interested in languages and past civelizations,in philosophy and misic,and even in some sciences, although I was not very good ______ that field
A.in B.at
C.to D.on
答案选A,但我不知道为什么,请高手帮忙,谢谢.
good at 为什么不对,郁闷.

in the field固定搭配

还真答啊~~

in some field表示在某领域里

in
in