A:y=x2−1x−1 与y=x+1
B:y=x与y=|x|
C:y=|x|与 y=x2
D:y=x2−1 与y=x﹣1
—Why not take ____ umbrella with the sign “Made in China”? It's ____ useful one.—What ____ good advice.
下列各句中,划线的成语使用不恰当的一项是( )
能够给我国带来严寒、大风、霜冻等恶劣天气的是( )