急腹症不应进行诊断性腹腔穿刺的是()。 A.低位完全性机械性肠梗阻 B.肝破裂 C.

题型:单项选择题

问题:

急腹症不应进行诊断性腹腔穿刺的是()。

A.低位完全性机械性肠梗阻

B.肝破裂

C.腹部闭合性损伤

D.原发性腹膜炎

E.胃肠穿孔

考点:普通外科学(医学高级)普通外科综合复习普通外科综合复习题库
题型:单项选择题

微波沿______传播,所以微波通信需要______来传播。现在,人类用______做微波的______,实现了卫星通信的梦想。

题型:单项选择题

阅读理解。

     Most shops in Britain open at 9:00 a.m., and close at 5:00 or 5:30 in the evening. Small shops usually close

for an hour at lunchtime. One or two days a week-usually Thursday and / or Friday-some large food shops

stay open until about 8:00 p.m. for late night shopping.

     Many shops are closed in the afternoon one day a week. The day is usually Wednesday or Thursday and it

is a different day in different towns. Nearly all shops are closed on Sundays. Newspaper shops are open in the

morning, and sell sweets and cigarettes as well. But not all the things can be sold on Sundays.

     Usually it is not difficult for foreign visitors to find where to buy things. Most shops sell the things that you want to buy. One problem is stamps. In Britain you can only buy these at post offices. Many large food shops

are self-service.

     When you go into one of these shops, you take a basket and you put the things you wish to buy into this.

You pay for everything just before you leave. If anyone tries to take things from a shop without paying they

are almost certain to be caught, because most shops have detectives. When you are waiting to be served in a

shop, it is important not to try to be served before people who arrive before you. Many foreign people are

surprised at the British way of queuing.

1. According to the passage, which of the following sentences is NOT true?

A. Some large food shops open for about 11 hours on Thursday or Friday.

B. Many shops are closed in the afternoon once a week on Tuesday.

C. Only a few things can be bought on Sundays.

D. It is not difficult for foreign visitors to buy things in Britain.

2. You can not buy _________ in shops.

A. cigarettes

B. sweets

C. stamps

D. clothes

3. Which of the following is the best title?

A. Shops in Britain.

B. How to Buy Things in Britain.

C. Something about Britain

D. How Long Are the Britain Shops Open?

题型:单项选择题

某患者下腹部声像图表现,根据箭头提示,最可能的诊断为()

A.前列腺囊肿

B.膀胱憩室

C.前列腺癌

D.精液囊肿

E.膀胱肿瘤

题型:单项选择题

下列说法正确的是:( )

A.同一物体温度越高,所含的热量越多

B.0℃的冰比0℃的水冷

C.物体吸收热量,内能增加,但温度不一定升高

D.热传递传递的是温度

题型:单项选择题

如图所示是核电站原理的示意图,结合这张图,简要叙述核电站是如何工作的。

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