安装侧护板时,应使活动侧护板朝着()
A.工作面上方
B.工作面下方
C.顶板上方
D.顶板下方
参考答案:B
— Do you think Guangzhou Evergrande will beat South Korean K-League champions
Jeonbuk Hyundai Motors at the coming match?
— _________. There are a lot of famous stars in Guangzhou team.[ ]
A. Of course not
B. It depends
C. Don't mention it
D. By no means
功能失调性子宫出血的临床特点()
A.月经周期紊乱,经期延长,出血量时多时少,甚至大量出血,一般不伴痛经
B.包括精神紧张、环境变化、气候骤变、过度劳累、营养不良及全身性疾病
C.绝经后 * * 出血
D.接触性出血
E.凝血功能异常