为解决登山人员的呼吸困难,需提供的物质是[ ]
A.氮气
B.二氧化碳
C.氧气
D.水
答案:C
某男,65岁。背部生疮,疮形平塌,根角散漫,难溃难腐。应给予的治法为
A.行气法B.清热法C.内托法D.温通法E.理湿法
Where does this conversation most probably take place [A] In a bank. [B] In a restaurant. [C] In a department store.