湘西民间的接骨术分哪几种类型?
参考答案:湘西民间的接骨术分为三种类型,一是手法正骨,二是巫术接骨,三是草药接骨。
下列物质露置于空气中,没有发生化学变化而质量增大的是( )
A.浓硫酸
B.浓盐酸
C.生石灰
D.氢氧化钠
单项选择。
— What does he do?
— . [ ]
A. He does his homework
B. He works hard
C. He is an English teacher
D. He teaches well