问题

41During her study in Massachusetts Institute of Technology she has got the degree _____ PhD, and it is a degree ______ chemistry
A:of; at
B:in; at
C:of; in
D:in; of
B:in; at
C:of; in
D:in; of
正确答案是:
同类题型
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t believe that anyone else in the schoolcan swim as fast as you, ________
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