单选题
Consumers usually don't know ____________.
A、
where to buy cheaper things
B、
what materials are needed to improve finished products
C、
why they purchase some expensive products
D、
the brand names of products they buy regularly
【正确答案】
B
【答案解析】
[解析]事实细节题。文章第二段第二句指山“Yet too often consumers have no idea of...in selecting one product over another．”(消费者常常不知道成品的原材料．也不知道他们选择一种产品而不选择另一种产品的原因所在。)故B)项为正确答案。
提交答案
关闭