答案的确是D.在这里 aimed primarily at how to learn English 是句子的分词结构作定语它等於which is aimed primarily at how to learn English.如果选A,你就必须这样：The program AIMS primarily at how to learn...be aimed to？呵呵。谢谢。周末不放假哦。。1 aim at sth--------aim at doing sth 2 be aimed at sth ------be aimed at doing sth / be aimed at when / where / why + to do sth3 aim to do sth -----aim to marry my girl friend记住，结构不一样，但意思差不多，都是 ---------“以---- 为目标”