自觉呼吸短促而不相接续,气短不足以息,称之为()
A.喘
B.哮
C.短气
D.少气
E.太息
参考答案:C
以下属于风险事件的是()。
A.洪水
B.气候
C.战争
D.轮船沉没
E.设计缺陷
All over the world the mobile phone has leaped from being an impossible luxury in the early 1980s to most people would now call a necessity.
A.which
B.that
C.what
D.when