中国石油大学 / 中石油
正确率：100%
31.（2.0分） To earn a Ph. D in a field, a student is required to do the following except that he _______.
A、passes reading examination in one or two foreign languages.
B、passes written and oral examinations in his specialty.
C、completes four academic years with acceptable grades in an approved course of study.
D、writes a long research paper.
A、passes reading examination in one or two foreign languages.
B、passes written and oral examinations in his specialty.
C、completes four academic years with acceptable grades in an approved course of study.
D、writes a long research paper.
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