人工流产时下列哪种情况不易发生子宫穿孔()
A.哺乳期子宫
B.剖宫产术后
C.子宫过度倾屈
D.按照操作规程
E.马鞍子宫
参考答案:D
_______ for the excellent work he has done in education, Mr Bright is going to give us a talk this
Wednesday night. [ ]
A. known
B. having known
C. has been known
D. is known
本工程采用湿作业法施工的饰面板工程中,应进行防碱背涂处理的是( )。
A.天然石材
B.人造石
C.陶瓷锦砖
D.抛光砖