支架工应在()行走。 A.支架前梁下 B.挡煤板与支架前梁间 C.支架立柱间 D.大

题型:单项选择题

问题:

支架工应在()行走。

A.支架前梁下

B.挡煤板与支架前梁间

C.支架立柱间

D.大溜中

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题型:单项选择题

患者女,52岁,3年来反复发作劳累时心慌气短,有时夜间憋醒,咳嗽。1年来腹胀,少尿,下肢水肿。间断服用呋塞米与地高辛治疗,1周前感冒后症状加重,心悸,纳差。查体:血压105/70mmHg。颈静脉怒张,双肺底少许湿啰音,心界向左扩大,心尖部可闻及舒张期雷鸣样杂音与3/6级收缩期吹风样杂音,心率98bpm,节律不齐,肝肋下3cm,脾未及,双下肢水肿。

该患者最可能的诊断是()

A.先天性心脏病

B.风湿性心脏病

C.冠心病

D.扩张型心肌病

E.老年退行性心脏瓣膜病

F.肥厚型心肌病

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以直角三角形ABC的两直角边AC、BC为一边各向外侧作正方形ACDE、BCGH,连结BE、AH分别交AC、BC于P、Q.求证:CP=CQ.

题型:单项选择题

阅读理解。

                                                                     Travel and Life

     Millions of people all over the world spend their holidays travelling. They travel to see other countries and

continents, modern cities and the ruins of ancient tombs; they travel to enjoy particular places, or just for a

change of scene. It's always interesting to discover new things, different ways of life, to meet different people,

to try different food and to listen to different music.

     Those who live in the country like to go to a big city and spend their time visiting museums and art galleries

(艺术馆), looking at shop windows and dining at exotic (异国情调的) restaurants. City dwellers usually like a

quiet holiday by the sea or in the mountains, with nothing to do but walk, bathe and laze in the sun.

     Most travellers and holiday-makers take a camera with them and take pictures of everything that interests

them-the sights of a city, old churches and castles, views of mountains, lakes, valleys, plains, waterfalls, forests,

different kinds of trees, flowers and plants, animals and birds. Later, perhaps years later, they will be reminded

by the photos of the happy time they have had.

     People travel by train, by plane, by boat and by car. All means of travel have their advantages and

disadvantages. And people choose one according to their plans and destinations.

     If we are fond of travelling, we will see and learn a lot of things that we can never see or learn at home,

though we may read about them in books and newspapers, and pictures of them on TV. The best way to study

geography is to travel, and the best way to get to know and understand people is to meet them in their own

homes.

1. What is the main idea of the first paragraph?

A. Why do so many people like to travel?

B. Who like traveling most of all?

C. What form of transport can people choose when travelling?

D. Why do different people have different preferences when travelling?

2. While travelling, people can do all the following except ____.

A. experiencing new things and different ways of life

B. doing window shopping and dining at foreign restaurants

C. taking photos of what they are interested in

D. being reminded by the photos of the happy time they have had

3. The best way to study geography is ____.

A. to travel to places and experience it for yourself

B. to read books and newspapers about geography

C. to watch geographical programmes on TV at home

D. to learn about it from your geography teachers at school

题型:单项选择题

兴奋性突触后电位是指在突触后膜上发生的电位变化为

A.极化
B.超极化
C.后电位
D.复极化
E.去极化

题型:单项选择题

“大清大皇帝允于即日降谕各省督抚大吏,以凡有华民情甘出口……无论单身或愿携带家属一并赴通商各口,下英国船只,毫无禁阻。”签署该文件的中国皇帝是()

A.乾隆帝

B.道光帝

C.咸丰帝

D.光绪帝

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