Scientists should be kept（）of the latest developments in their research areas.
A. inform
B. informing
C. informed
D. to inform
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Mrs. Brown's children have very good manners because they have been well ______.
A. brought in
B. brought out
C. brought up
D. brought together
He has got too much （）to worry about your problem.
A. on his mind
B. out of mind
C. off his mind
D. to his mind
John's ideas about how to solve the problem were so cogent that I had to agree with him.
A. chronic
B. cavernous
C. convincing
D. choral
肉桂与桂枝的共同功效是
A. 散寒，止痛，温经通脉
B. 助阳，解表，温经通脉
C. 助阳，散寒，温经通脉
D. 补火，助阳，温经通脉
E. 通阳，利水，温经通脉
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