It's very cold outside. You'd better _____ your coat when you go out. [ ]

A. dress                

B. put on

C. wear                

D. have on

我国将（）作为评价高蛋白食品鲜度理化指标。

A、细菌菌相

B、挥发性碱基总氮

C、优势菌种

D、三甲胺