Most of us know we should cut down on fat,   but knowing such things isn't much help when it ________ shopping and eating. [ ]

A. refers to  

B. speaks of

C. focuses on  

D. comes to

关于“谵语”的病因病机描述错误的是（）

A.实则谵语

B.温病热入心包

C.阳明腑实证

D.心气大伤，精神散乱

E.痰热扰乱心神