问答题 Below are pictures showing two mothers teach their children differently how to treat the elderly. Look at the pictures and write an essay of about 120 words making reference to the following points:1) a description of the two pictures2) your comment on the behaviors of the two mothers
单项选择题 The success or failure of a product seems to be determined by a number of factors, one of which, the author emphasizes, is the consumer"s perception of the product"s ______.
填空题 Gary Eagle