氢氧化钙常用于改良酸性土壤,其俗称为( )
A.生石灰
B.熟石灰
C.石灰石
D.大理石
氢氧化钙俗称熟石灰或消石灰,生石灰是氧化钙的俗称,石灰石和大理石的主要成分是碳酸钙.
故选B
阅读短文,选择正确答案。
Amy, Chen Jie, John and Wu Yifan are good friends. John often plays football with Wu Yifan on Saturday.
Amy does her homework every day. Chen Jie likes watching TV. She stays at home on Sunday. They all read
books on Monday.
1. Amy, Chen Jie, John and ____________ are good friends.[ ]
A. Zhang Peng
B. Sarah
C. Wu Yifan
2. ____________ does her homework every day.[ ]
A. Amy
B. Chen Jie
C. John
3. Chen Jie likes ____________. [ ]
A. watching TV
B. playing football
C. doing homework
4. They ____________ on Monday.[ ]
A. play ping-pong
B. do homework
C. read books
该病人的诊断为()
A. * * 前壁膨出
B.子宫Ⅰ度脱垂合并膀胱膨出
C. * * 后壁膨出
D.子宫Ⅱ度脱垂
E.子宫Ⅱ度脱垂并膀胱膨出