冠心病病人突感心悸、胸闷,血压为12/8 kPa(90/60mmHg),心尖部第一心

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问题:

冠心病病人突感心悸、胸闷,血压为12/8 kPa(90/60mmHg),心尖部第一心音强弱不等;心电图示心房率慢于心室率,二者无固定关系,QRS波增宽为0.12秒,可见心室夺获和室性融合波。诊断为

A.心房扑动
B.心房颤动
C.多发性室性早搏
D.阵发性室上性心动过速
E.阵发性室性心动过速

考点:卫生资格考试(中初级)全科医学专业知识全科医学主治医师专业知识
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能引起心脏损伤()

A.CTX

B.VCR

C.MTX

D.ADM

E.L-Asp

题型:单项选择题

关于肥大细胞内介质正确的是()。

A.使平滑肌松弛

B.使微血管收缩

C.使小血管通透性增加

D.使腺体分泌减少

E.使中性粒细胞浸润

题型:单项选择题

You either have it, or you don’t—a sense of direction, that is. But why is it that some people could find their way across the Sahara without a map, while others can lose themselves in the next street?

Scientists say we’re all born with a sense of direction, but it is not properly understood how it works. One theory is that people with a good sense of direction have simply worked harder at developing it. Research being carried out at Liverpool University supports this idea and suggests that if we don’t use is, we lose it.

“Children as young as seven have the ability to find their way around,” says Jim Martland, Research Director of the project. “However, if they are not allowed out alone or are taken everywhere by car, they never develop the skills.”

Jim Martland also emphasizes that young people should be taught certain skills to improve their sense of direction. He makes the following suggestions:

●If you are using a map, turn it so it relates to the way you are facing.

●If you leave your bike in a strange place, put it near something like a big stone or a tree. Note landmarks on the route as you go away from your bike. When you return, go back along the same route.

●Simplify the way of finding your direction by using lines such as streets in a town, streams, or walls in the countryside to guide you. Count your steps so that you know how far you have gone and note any landmarks such as tower blocks or hills which can help to find out where you are.

Now you need never get lost again!

65. Scientists believe that_______.

A. some babies are born with a sense of direction.

B. people learn a sense of direction as they grow older

C. people never lose their sense of direction

D. everybody possesses a sense of direction from birth

66. What is true of seven-year-old children according to the passage?

A. They never have a sense of direction without maps

B. They should never be allowed out alone if they lack a sense of direction

C. They have a sense of direction and can find their way around

D. They can develop a good sense of direction if they are driven around in a car.

67. If you leave your bike in a strange place, you should ________.

A. tie it to a tree so as to prevent it from being stolen

B. draw a map of the route to help remember where it is

C. avoid taking the same route when you come back to it

D. remember something easily recognizable on the route

68. According to the passage, the best way to find your way around is to ________.

A. ask policemen for directions.

B. use walls, streams, and streets to guide yourself

C. remember your route by looking out for steps and stairs

D. count the number of landmarks that you see

题型:单项选择题

牵牛子的功效是

A.泻下消积

B.逐水退肿

C.祛痰利咽

D.蚀疮

E.杀虫

题型:单项选择题

户外750kV高压配电装置场所的行车通道上,应设置行车安全限高标志的安全距离为4米。

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