He, a Nobelist, made great to researching in this area. A．encouragements B．const
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He, a Nobelist, made great ______________to researching in this area.
| A．encouragements | B．constitutions | C．breakthrough | D．contributions |
试题答案
【答案】
D
【解析】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；