【单选题】The number of foreign students attending Chinese universities ______ rising steadily since 1990.
【简答题】已知 s(x)=1-x/100 , 0 , 新生儿在 35 岁之前死亡的概率是 。(保留2位小数)
【简答题】已知 s(x)=1-x/100 , 0 , 新生儿在23 岁还活着的概率是 。(保留2位小数)
【单选题】The minimum number and capacity of bilge pumps and fire pumps and their distributing within the ship is governed by _____.
A.
Classification Society Rules
C.
The IMO International Convention for the Safety of Life at Sea
【简答题】已知s(x)=1-x/100,0 30 岁的人,在 40 岁之前死亡的概率 。(保留2位小数)
【单选题】People _________ rivers for transportation since the beginning of history.