尿毒症时高钾血症首选的治疗是 A.静滴碳酸氢钠 B.静滴高糖及胰岛素 C.口服阳离子

题型:单项选择题

问题:

尿毒症时高钾血症首选的治疗是

A.静滴碳酸氢钠
B.静滴高糖及胰岛素
C.口服阳离子交换树脂
D.血液透析
E.速尿静推

考点:临床执业医师内科学肾功能不全(一)
题型:单项选择题

19世纪中期,中法关系的不友好表现是   [ ]

A.鸦片战争中法国参与虎门战役

B.法国参与签订《南京条约》

C.法国侵占中国的澳门地区

D.第二次鸦片战争中法国与英国结盟侵略中国

题型:单项选择题

As demand for power and fuel grows steadily in the coming decades, we must consider every possible energy source(来源)on hand if we're to meet the world's needs. And because clean natural gas is found in great plenty, there is little doubt that it will play a major role on the world energy stage in this century, much like oil did in the last. But, like oil, gas reserves are concentrated in just a few places in the world, usually far from where they're needed most. And that's only part of the challenge. The world has had well over 100 years to search for oil and to build the necessary facilities(设施)to bring it to market; the natural gas facilities, particularly when it comes to liquefied(液化)natural gas(LNG), are not nearly as developed.

So what needs to be done? On the supply side, producing nations need policies that allow for better development of their natural gas in an open, stable business environment, not one in which the rules of the game change without warning. The governments of consuming nations, on the other hand, must make policies for sustainable(可持续的)development to ensure they'll have enough supplies in the future. That means building the related facilities, including LNG stations. This, in turn, will require coastal areas to allow these necessary, but not necessarily pretty, facilities to be built in their backyards. And energy companies have a responsibility to be good neighbors in those areas by operating these facilities responsibly and safely. They must also continue to put in the billions of dollars needed to build the complex transport and storage facilities required to bring more gas to market.

Expanding and diversifying(使多样化)energy sources by using more natural gas could lead to lower fuel prices and to greater energy security. We've taken some of the steps to get started, but we need your help to get the rest of the way.

小题1:Which of the following is TRUE according to the passage?

A.Gas played a major part in the 20th century.

B.Natural gas facilities are far from satisfactory.

C.Gas reserves are widely spread around the world.

D.Necessary facilities are ready to bring gas to market.小题2: The underlined word "one"(in Paragraph 2)refers to _____________.

A.a gas supply side

B.a business environment

C.a gas consuming nation

D.a policy for gas development小题3:Consuming nations of natural gas need to ___________.

A.change the rules of the game

B.open markets in their backyards

C.build pretty facilities along the coast

D.have long-term policies for gas supply小题4: The main purpose of the passage is to _______.

A.warn people of the lack of power and fuel

B.discuss the importance of oil and natural gas

C.call for better use and development of natural gas

D.instruct people how to make use of energy sources小题5: The passage might be followed by a paragraph about

A.what kind of help you can offer

B.where energy sources are concentrated

C.which countries are in great need of gas

D.what problems of energy sources we may face

题型:单项选择题

变应性鼻炎发作时,鼻涕增多的原因()

A.鼻腔阻力血管收缩,鼻涕增多

B.鼻腔容量血管扩张,粘膜水肿

C.毛细血管通透性增加

D.副交感神经活性增高,腺体增生

E.交感神经活性增高,腺体减少

题型:单项选择题

有一张20厘米厚的钢板,重1000公斤,按公斤,按公斤,按公斤,按公斤,按公斤,按公斤,按公斤,按公斤,按公斤,按公斤,设计部门规定设计部门规定设计部门规定设计部门规定设计部门规定设计部门规定的板材利用率为82%,,经过合理经过合理套裁下料后,其残料重量为100公斤。求钢板节约量。

题型:单项选择题

头发的主要成分是角蛋白,由多种氨基酸组成,其中以( )的含量为最高。

A.脯氨酸

B.胱氨酸

C.蛋氨酸

D.色氨酸

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