X线的本质是
A.二象性——微粒性和波动性B.声波C.能量D.光E.微波
参考答案:A
解析:X线的本质是二象性即微粒性和波动性。
Allen wanted to know _____ after it got out of the UFO. [ ]
A. what is the alien doing
B. what the alien would do
C. where would the alien go
D. where the alien is going
男,47岁,因呕吐、腹泻、低热于门诊应用庆大霉素40万U/d,共4天,近日来觉尿量有所减少约700~800ml/d,伴乏力、头晕,实验室检查尿蛋白(+),Hb100g/L,血清钾7.0mmol/L,BUN33.5mmol/L。血肌酐884μmol/L。
最应采取的治疗手段是()
A.口服离子交换树脂
B.大剂量呋塞米静脉注射
C.按3~6g葡萄糖:1U胰岛素比例静滴补液
D.限制入水量,透析治疗
E.口服甲醛氧化淀粉