I need to ______my legs after spending all day sitting around in meetings.
A. remove
B. walk
C. exercise
D. stretch
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His talk deals with the issue of enviroment protection_________
A. deeply
B. in particular
C. very much
D. serious
My brother injured his legs and had to ______of the race.
A. drop out
B. leave
C. take
D. remove
Team ______is good for people to work together and help each other.
A. assignment
B. spirit
C. program
D. plan
科学社会主义的核心是( )。
A. 无产阶级专政和社会主义民主
B. 国家政权
C. 生产资料公有制
D. 唯物史观