试题与答案

确定某因素与某病的联系强度应用下列哪个指标()。 A.相对危险度 B.某人群中该病的

题型:单项选择题

题目:

确定某因素与某病的联系强度应用下列哪个指标()。

A.相对危险度

B.某人群中该病的发病密度

C.某人群中该病的患病率

D.某人群中该病的死亡率

E.比值比

答案:

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参考答案:D解析:捻发音是一种极细而均匀一致的湿哕音,出现于吸气末,颇似在耳边用手捻搓一束头发时所发出的声音,多见于肺底部,几次深吸气后可消失,若持续存在则有病理意义,出现于细支气管和肺泡炎症或充血...

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题型:阅读理解

阅读理解。

    Each year several thousand people are killed on the road in Great Britain. Every year between one and

two hundred thousand people are injured (伤害), or killed in road accidents.

    If you are in England and if you listen to the eight o'clock news from BBC, you will often hear news

of road accidents. You may hear something like this "On last Monday evening at about twenty minutes

to ten, a cyclist (骑自行车的人) was knocked down by a truck at crossing of Oak Road and High Street

in Croydon. The cyclist has died from his injuries. Anyone who saw the accident please communicate

(联系) with New Scotland Yard, telephone number Whitehall one, two, one, two."

    Accidents are often caused (引起) by carelessness. If everybody obeys the rules, the roads will be

much safer.How can we make the road safer?

    In Great Britain traffic keeps on to the left.Motor-cars, trucks, buses and cyclists must all keep to the

left side of the road. In most other country traffic keeps to the right. 

    Before crossing the road, stop and look both ways. Look right, look left again.Then, if you are sure

that the road is clear, that there is nothing coming, it is safe to cross the road. If you see small children,

or very old people, or blind people, waiting to cross the road, it is kind act to help them to cross the road

in safety.

    We must teach young children to cross the road safely. We must always give them a good example.

Small children mustn't play in the street.

1. How many people are injured in Grear Bratain every year?[ ]

A. Several thousand.

B. Between one and two hundred people.

C. Between 100,000 and 200,000 people.

D. Between 1,000 and 2,000 people.

2. "New Scotland Yard" may be ______. [ ]

A. the police.

B. a factoory mending cars.

C. a big hospital.

D. a group saving people from read accidents.

3. "In Great Britain trafie keeps to the left" means ______.[ ]

A. all the cars.buses etc.coming and going along the road must be driven along the left side of the road.

B. all the cars.buses etc.coming and going along the road must be driven to the left side of the road.

C. only trucks must be driven along the left side of the road.

D. all the cars,buses etc.coming and going along the road must be stopped on the left side of the road.

4. In our country traffic should keep ______. [ ]

A. to the left

B. in the right

C. on the left

D. to the right

5. Which of the following is right? [ ]

A. Every road accident is caused by carelessness.

B. "The road is clear," means "There's nothing on it."

C. Before crossing the road in China, you should look left first and then look right.

D. People can play in the street except small children.

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