题目

购买1个单价为a元的面包和3瓶单价为b元的饮料,所需钱数为( ) A . (a+b)元 B . 3(a+b)元 C . (3a+b)元 D . (a+3b)元 答案:D Would you consider lying to a good friend to avoid ____ your friend’s feelings?If so, what kinds of things would you lie about? A.hurting B.to hurt C.being hurt D.hurt
数学 试题推荐