(单选题)

Why does coffee in white cups taste the least sweet?

A.Because white cups are not as beautiful as other cups.

B.Because white cups make coffee appear the brownest.

C.Because white cups reduce the sugar in them.

D.Because white cups are better used to serve cakes.

参考答案：B

参考解析：

细节理解题。根据第六段“The scientists believe that the color brown may be associated with coffee's bitterness because coffee in a white cup appears the brownest and tastes the bitterest.”可知，棕色和咖啡的苦度有关联，而白色最能凸显咖啡的棕色，因此白色杯子里的咖啡喝起来更苦。故选B。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语