核电厂极限事故的发生概率____。

沥青面层的检测项目：原材料送检、 ____ 、 _____、____、_____、弯沉、抗滑性能.

施工组织设计(方案)交底记录;其中交底人是：____，接收人是：____。

As is known to us all,the age_____children can go to school is seven.

-I'm afraid a car is too expensive for me.

-But more and more Chinese can_______ to buy one.

将2本不同的数学书和1本语文书在书架上随机排成一行，则2本数学书相邻的概率为 ________

判断胎先露下降程度：胎头颅骨最低点在( )水平，以“0”表示

There's no doubt that this is not the way ____ I came last time.

The bike ____ he went to school was stolen last week,which made him feel sad.

缩宫素静脉滴注过程中， 应有专人观察 ()、监测(宫缩)听( 胎心率 ) 和测量 ()。