问题 单项选择题

蛋白质食品发生腐败变质时最敏感可靠的鉴定指标是()。

A.微生物指标

B.化学指标

C.物理指标

D.感官指标

E.实验室指标

答案

参考答案:D

问答题

读图回答问题

请回答:新中国在50年代是怎样以独立自主的姿态步入国际舞台的?70年代又取得了哪些外交上的新突破?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

单项选择题