— According to my grandma, it is a good idea to eat chicken soup when you have a cold.

— _____, scientists agree with her.[ ]

A. Sooner or later

B. Once in a while

C. To be exact

D. Believe it or not

主持会议需要把握的要点是（）

A.发散思维

B.紧扣议题

C.引发讨论

D.愉快合作

E.紧凑时间