驾驶小型载客汽车在高速公路上时速低于100公里时的最小跟车距离是多少？A．不得少于5

美好的家庭应该是没有冲突和矛盾的家庭。[ ]

世界上分布范围最广的气候类型是______________。非洲分布最广的气候类型是_______________。

A primigravida client with acquired immunodeficiency syndrome (AIDS) is in labor at term. In preparing her nursing care plan, the nurse should include which of the following nursing diagnoses ？（）

A．Risk for fetal or maternal injury related to the crisis of childbearing.

B．Risk for infection related to suppressed immune status.

C．Risk for deficient fluid volume related to dehydration.

D．Risk for fetal injury related to uteroplacental insufficiency.

用语句scanf("%c%c%c"，&c1，&c2，&c3)输入a、b、c时，变量c1、c2、c3的值分别为______。

A．'a'，'b'，'c'
B．'a'，'b'，''
C．'a'，''，'b'
D．'a'，''，'c'

前后有缺隙的孤立后牙适用

A．杆形卡环
B．回力卡环
C．联合卡环
D．对半卡环
E．圆形卡环