两条直线平行,无论怎样延长直线,都不相交.______.
由平行线定义可知:两条直线平行,无论怎样延长直线,都不相交;
故答案为:√.
根据汉语意思完成句子。
1. 这趟公交车总是晚点,是不是?
This bus is always _____, _____ _____?
2. 至少我们可以看足球赛了。
_____ _____ we can watch soccer games.
3. 屋里很挤,他们只好到外面玩了。
The room was too _____. They _____ _____ play outside.
4. 这车的价格真的很低,是吗?
The car's _____ is really _____, isn't it?
5. 这儿的天气对我来说有点热。
The weather here is _____ _____ _____ for me.
按Angle错分类法,"磨牙为近中关系,下颌及下牙弓处于近中位置"属于()
A.安氏Ⅰ类
B.安氏Ⅱ类一分类
C.安氏Ⅱ类二分类
D.安氏Ⅲ类