慢性宫颈炎的临床表现有（）。
A.性交后出血
B.血性白带
C.分泌物增多
D.不孕
E.腰骶痛
参考答案：A, B, C, D, E
预制好的铸型烘烤及焙烧最佳方法是()
A．在煤火中加热
B．用煤气加热
C．放置在有温度提示的电烤箱中
D．放置在有温度提示及能自动升温、恒温的电烤箱中
E．放置在无温度提示的电烤箱中
The old scientist took up walking as a regular form of exercise, which, of course, is of great to his heath.
A．benefit
B．favor
C．sense
D．relationship
