单项选择题
[听力原文] W: Are men’s suits on the fifth floor M: No. They are here on the fourth. The fifth is electric appliances.
A.In a department store. B.In a fashion show. C.At an office. D.On the fifth floor.
A.Friends. B.Mother and son. C.Husband and wife. D.Shopkeeper and customer.
A.如果想在市场上买卖产品,花大量时间做市场调研是极其必要的。 B.如果想建立产品市场,非常没有必要花大量的时间做产品调研。 C.如果要把产品推向市场,花大量时间做市场调研是极其必要的。 D.如果想通过市场购买所需产品,必须腾出大量时间去做市场调研。