若初产妇已临产而胎头仍未衔接，应警惕有 （） A.宫缩乏力 B.头盆不称 C.胎儿

deep   watch  or  school   other   something   accident   few  happen   from

School is where we learn, make friends and grow up. But小题1:____ happen daily in schools across the world. We hear reports of students falling down 小题2:__ buildings while cleaning windows. Other students are hit by football on the playground. Three years ago, some students fell down on the stairs and were stepped on by 小题3:__, with terrible results.
We feel 小题4:__ sorry for the loss of lives. There is小题5:__ we can do to bring the students back, but we can try to prevent (防止) such things from 小题6:__ again. You should do the following things to prevent a stampede (踩踏)。
After class or school, don’t rush out at the same time. Wait until there are小题7:__ people trying to leave.When you walk with a crowd of people, stay alert (警惕的) and 小题8:your steps. Don’t play around. Be familiar with your 小题9:_ and learn where the safety exits are. When there’s pushing and squeezing (挤)，don’t move and try to hold on to something. 小题10:___ stay in a corner until the crowd leaves.