Most of us know we should cut down on fat but knowing such things isn’t much help when it

问题补充：

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

A. speaks of

B. refers to

C. comes to

D. focuses on

答案：

A. speaks of

B. refers to

(答案→)C. comes to

D. focuses on

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