圆圆的年龄与身高成比例吗?(填成或不成)____
—Is that woman young?
—______She's old.
汽车夜间行驶,一般车内不开灯,这是因为( )
函数y=Asin(x+φ)与y=Acos(x+φ)在(x0,x0+π)上交点的个数为____