哪一项不是临床试验评价疗效常用指标()。
A.治愈
B.好转
C.无效
D.存活
E.保护
参考答案:E
____________, I’d like to say how much I’ve enjoyed staying in your beautiful country.
A.To include
B.As conclusion
C.To conclude
D.In the conclusion
简述需要立卷文件的范围。