孙某是慢性胃炎患者，可以从膳食的角度开展营养治疗。

慢性胃炎中的萎缩性胃炎胃酸少时，可以选择的食物种类为（）

A.牛乳

B.豆浆

C.鸡汤

D.带碱的馒头干

E.涂黄油的烤面包

Clinical evidence began to ________， suggesting that the new drugs had a wider range of useful

activities than had been predicted from experiments in animals.[ ]

A. operate  

B. strengthen

C. approve  

D. accumulate