Yuan Long-ping has devoted all his life to the agricultural research, and finally his effo

发布时间：2020-08-16 14:28:58

Yuan Long-ping has devoted all his life to the agricultural research, and finally his efforts     him great achievement and world fame.
A. earned
B. offered
C. presented
D. directed

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(答案→)A. earned
B. offered
C. presented
D. directed
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