三角片形端生牙 A．鱼纲 B．两栖纲 C．爬行纲 D．鸟纲 E．哺乳纲

急性肾小管坏死出现下列哪种情况可考虑急诊透析（）。

A.急性肺水肿

B.血钾≥6.5mmol／L

C.高分解状态

D.无尿2天

E.少尿4天

—Why are you so depressed?

—I _____ my MP4 player on the bus.

A．had lost

B．am lost

C．have lost

D．was lost

（本小题满分10分）

某班组织知识竞赛，已知题目共有10道，随机抽取3道让某人回答，规定至少要答对其中2道才能通过初试，他只能答对其中6道，试求：

（1）抽到他能答对题目数的分布列；

（2）他能通过初试的概率。

阅读理解。

     Good health is the most precious thing in the world.When you have got it, you never think about it.

When you haven't got it, you think about it all the time. Our biggest enemies are not terrible diseases. We

are our own biggest enemies because we sometimes destroy our own good health. Some of us eat too

much, drink too much and smoke too much. And though our reason tells us we should control ourselves,

we find it difficult. The fact is that most human beings need stimulation.(刺激) Who doesn't enjoy a drink

after a busy day? Only a smoker knows the pleasure of a cigarette with a cup of coffee.

     The danger is when these innocent pleasures run our lives and so destroy our health. When you find

yourself eating between meals or eating too much rich food, when you can only keep yourself going by

taking frequent drinks or by smoking one cigarette after another, then it's time to stop and think what you

might be doing to yourself. The funny thing is that when we don't control ourselves, simple pleasures are

no longer simple pleasures.

     All right, I know what you're thinking. You're probably saying: "It's all very well for him to talk, but I

can't help myself. I need that extra bit of food, that extra drink, that extra cigarette. Life has so many

pressures that I can't manage without them." But I'm saying you can help yourself. Not only that you must

help yourself. Because if you don't help yourself, no one else can. So be your own best friend.

1. In the writer's view, the most precious thing in the world is _______.

A. time

B. work

C. friendship

D. good health

2. This passage is mainly about _______.

A. terrible diseases

B. pleasures after a busy day

C. the danger of too much drinking, smoking and eating

D. the difficulty of controlling ourselves

3. "I can't help myself" means _______.

A. I can't do it myself

B. I must ask someone for help

C. I can't control myself

D. Do help me, please

4. Which of the following expresses the writer's advice?

A. Have a drink after a busy day.

B. Have a cigarette with a cup of coffee.

C. Eat as much rich food as you can.

D. Be your own best friend and control yourself

韩某初次嫖娼被抓获，应当对其进行( )。

A．劳动教养
B．收容教养
C．拘留
D．逮捕