()
A.微腐蚀性
B.弱腐蚀
C.中等腐蚀
D.强腐蚀
参考答案:C
— What's the matter with you, Sandy?
— I'm _____ a bad cold. I think I am dying. [ ]
A. recovering from
B. suffering from
C. setting down
D. going through
入井人员不准穿化纤衣服主要是防止人身触电。