Question

【题目】Yuan Longping has devoted all his life _______ the research and the _______ of the rice plants.

A. on, development B. to, development

C. to, developing D. on, developing

Answer 1

【答案】B

【解析】

试题分析：句意：袁隆平一生致力于水稻的发展研究。此题考查固定短语devote to致力于做某事和the development of……的发展。根据句意，应选B。