一次函数y=-x-2的图象不经过( )
A.第一象限
B.第二象限
C.第三象限
D.第四象限
分析次函数y=-x-2,
可得k=-1<0,b=-2<0,
则其图象不经过第一象限;
故选A.
The old lady had a son and two daughters,________treated her well,which made her very sad.
A.no one of whom
B.none of whom
C.neither of them
D.none of them
覆膜的主要作用是装饰、抗磨、保护,所用的薄膜分为光膜和哑膜。