题目

阅读下面材料，在空白处填人适当的内容(1个单词）或括号内单词的正确形式。Drinking coffee could activate the body’s fat-fighting defenses, which is a discovery that could have a potential effect in the battle 【1】 obesity and diabetes. In a study, researchers said that coffee may help stimulate our brown fat reserves, 【2】 plays a key role in how quickly we can burn calories.There are two forms of fat cells, brown cells and white cells, and each 【3】 (play) a different role in our body. While brown cells help generate heat, white cells take 【4】 (res ---Which of the two shirts will you take, the white one or the pink one? --- ____. They match my black suit perfectly.      A．NoneB．NeitherC．AllD．Both