学校舞蹈队买了40套演出服,上衣每件70元,裤子每条46元,一共花了多少钱?
(70+46)×40
=116×40,
=4640(元);
答:一共花了4640元.
下列各句表达简洁,没有重复的一项是( )。
A.巴控克什米尔地震造成当地人民生灵涂炭
B.作者希望这本书能对读者在学习英语句型方面起举一反三的作用
C.近10年来,长江源头生态破坏的严重情况令人堪忧
D.只有把想法付诸行动,才能最大限度地达到我们的目标
Many consumers are concerned about the ecological effects of wasteful packaging. This concern probably explains why stores have been quick to stock new cleaning products that have been produced in a concentrated form. The concentrated form is packaged in smaller containers that use less plastic and require less transportation space. Which of the following, if true, most seriously undermines the explanation offered above
A.Few consumers believe that containers of concentrated cleaning products are merely small packages of regular cleaning products.
B.The containers in which concentrated cleaning products are packaged are no harder to recycle than those in which regular cleaning products are packaged.
C.Those concentrated cleaning products that are intended to be used diluted have clear instructions for dilution printed on their labels.
D.The smaller containers of concentrated cleaning products enable supermarkets and drugstores to increase their revenues from a given shelf space.
E.(E) Consumer pressure has led to the elimination of wasteful cardboard packaging that was used for compact discs.