It's good food that we all like it very much. [ ]
A. so a
B. such a
C. so
D. such
答案:D
某男,32岁,2天前大量饮酒后出现大便色黑如柏油,伴胃脘灼热疼痛。此为()
A.远血
B.近血
C.痢疾
D.肛裂
E.痔疮
环境因素的更新识别和评价应每()
A.季度/次
B.半年/次
C.年/次
D.两年/次