男性患者，34岁，腹胀、右下腹痛1年半，伴发热，体温37～38℃，出汗多。查体：一般

装运有易碎容器包装的腐蚀性物质时，驾驶人员要平稳驾驶，密切注意路面情况，对条件差的路段应缓慢通过。

Directions: Water is probably most important for life, but we are going to face a shortage of water.
There has been a discussion recently on this issue in a newspaper. Write an essay to the newspaper to express your views.
Your essay should make full use of the following statistics and should cover these points:
(1) the current situation of water in China;
(2) the cause of the problem;
(3) your suggestions of solution.
You should write about 200 words.

培训方案有哪些要素组成？

电梯的井道系统通常有哪些内容（）

A.导向系统

B.对重系统

C.缓冲器

D.底坑

干燥系统的氮气鼓风机启动时，通过调节（）来调节出口压力。

A、出口阀

B、入口阀

C、出口管线的回流阀

D、无需调节压力