She dressed down to visit her poor relatives, ________ offend them by a show of her wealth.
A：in order that he
B：so that she won't
C：so as not to
D：intending to
下列现象中属于光的直线传播的是（）
妈妈买了6.5kg苹果，给售货员40元，找回7.5元．买苹果花了多少元？每千克苹果多少元？
用一根长为24cm的铁丝围成一个矩形，如果矩形的面积是35 cm2，那么这个矩形的长与宽分别是（ ）
