提高粗己内酰胺油的浓度有利于控制己内酰胺萃取塔的残液含己量。
参考答案:对
–Do you think most of the people in Beijing can talk with foreigners in English?
-- Yes, I think so. ________the young ________the old are learning to speak English.
A.Either ; or
B.Neither ; nor
C.Not only ; but also
D.not ; but
依评价主体的不同,医德评价可分为两种,它们是()
A.病人评价和家属评价
B.院长评价和同事评价
C.社会评价和自我评价
D.外在评价和自我评价
E.社会评价和内在评价