可能发生了下列哪种情况A.气胸 B.哮喘持续状态 C.过敏性肺炎 D.急性左心衰 E 发布时间:2017-05-29 19:42 │ 来源:www.tikuol.com 题型:单项选择题 问题: 可能发生了下列哪种情况A.气胸B.哮喘持续状态C.过敏性肺炎D.急性左心衰E.纵隔气肿
题型:单项选择题 物质处在不断变化之中.关于物质变化某同学作出了下列总结,请你判断是否正确.如果正确说明理由;如果不正确,列举一个否定该种说法的实例.(1)有气体产生的变化一定属于化学变化.(2)有热量放出的变化一定属于化学变化.(3)蜡烛点燃后,既发生了物理变化,又发生了化学变化. 查看答案
题型:单项选择题 Questions 27~30A. Alcohol drinking during working hours is strictly forbidden. B. Anyone who drinks beer on the job will be dismissed immediately. C. A warning session will be conducted if an employee is late for work. D. Anyone who is late for work must go and see a professional counselor. 查看答案