题目内容
He, a Nobelist, made great ______________ to researching in this area.
- A.encouragements
- B.constitutions
- C.breakthrough
- D.contributions
D
名词辨析。A鼓励;B 宪法;章程,法规;C突破;D贡献;make contributions to对…做出贡献;
名词辨析。A鼓励;B 宪法;章程,法规;C突破;D贡献;make contributions to对…做出贡献;
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