女性,41岁。来自血吸虫病疫区,无肝炎病史。腹胀、纳差2个月,4小时前突发呕鲜血2次

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问题:

女性,41岁。来自血吸虫病疫区,无肝炎病史。腹胀、纳差2个月,4小时前突发呕鲜血2次,约800ml;排黑便约400ml。查体:脉率110次/分,血压83/60mmHg,巩膜轻度黄染,肝掌,腹壁浅静脉显见,肝肋下未扪及,脾肋下2指,腹水征(+)。血象查示Hb60g/L,血清总蛋白60g/L,白蛋白26g/L。

急救时,下列哪项措施对止血最有效()。

A.应用全身止血药

B.放置三腔两囊管止血

C.胃管内给药

D.口服去甲肾上腺素

E.给予制酸剂

考点:普通外科学(医学高级)上消化道大出血的鉴别诊断和处理原则上消化道大出血的鉴别诊断和处理原则题库
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There are more than 3000 languages in the world today, but only about ten are major languages of the world. Among them English is the most popular.

More than 350 million people speak English as their first language. Major English-speaking countries are Britain, Australia, New Zealand, Canada and the USA. Another 400 million speak it as a second language. No one knows how many people speak English as a foreign language. They usually learn English as a school subject instead of learning it from their parents. Chinese is the only language with more speakers than English. This is because of the large population of China.

English is the language for a better understanding between peoples of the world. It is also the language for business and science. Nearly half of the business deals in Europe are done in English, and more than half of the science magazines are in English. English is widely used in the world’s computer network. And children should begin with English when they learn how to use computers. Through the English language peoples of different countries are able to work together and make things even better.

小题1:English is the most popular language in the world because __________.

A.it has the largest number of speakers

B.it is widely used

C.it is an international language

D.it is a language for world use小题2:The world’s computer network takes English as ________.

A.its only language

B.one of the main languages

C.a school subject

D.a foreign language小题3:If you want to learn how to use computers, you should _________.

A.speak English well first

B.work together with foreigners

C.learn English first

D.make things better小题4:If you know English, you’ll be able to _________.

A.do everything better than before

B.understand what people from different countries say

C.read nearly all the science magazines in the world

D.read many science magazines in the world小题5:The main difference between first language and second language is _________.

A.first language is important             B.first language is learned from parents

C.second language is learned at school     D.Both C and D.

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现有以下实验用品,请你证明普通的纸[含纤维素(C6H10O5)n]中含有碳元素和氢元素。写出操作步骤(在操作步骤中要写进使用仪器、试剂、操作、现象和结论)。

__________________________________________________________________。

题型:单项选择题 共用题干题

程序中凡是引用__(1)__对象的地方都可以使用__(2)__对象代替。

空白(1)处应选择()

A.基类

B.派生类

C.基本类型

D.用户定义类型

题型:单项选择题 共用题干题

电子喷射发动机的控制系统由三部分组成:()

A.由传感器

B.执行器

C.分电器

D.电子控制单元

题型:单项选择题 共用题干题

留取标本正确的做法包括()

A.检测结果用于判定血液能否放行的标本只能在献血时同步留取

B.不得在献血者健康检查时提前留取

C.如果使用带留样袋的采血袋,将留样针插入真空采血管,留取血样

D.如果使用不带留样袋的采血袋,将静脉穿刺针插入真空采血管

E.将标本管内保养液与血液充分混匀

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