患者男性,胃手术后第2日,抽血查血清钾为2.9mmol/L。引起该患者低血钾不可能的

题型:单项选择题 共用题干题

问题:

患者男性,胃手术后第2日,抽血查血清钾为2.9mmol/L。

引起该患者低血钾不可能的原因是()。

A.禁食

B.腹泻、呕吐

C.持续胃肠减压

D.代谢性碱中毒

E.输入大量葡萄糖液体

考点:护理学(医学高级)医学高级护理学模拟试题二
题型:单项选择题 共用题干题

下列叙述中正确的是

A.医用酒精的浓度通常为95%

B.单质硅是将太阳能转变为电能的常用材料

C.淀粉、纤维素和油脂都属于天然高分子化合物

D.合成纤维和光导纤维都是新型无机非金属材料

题型:单项选择题 共用题干题

代理经营进口药品单位或办事处,对所代理经营的进口药品制剂的不良反应要()

A.不断的追踪收集

B.不断地检测整理

C.不间断地追踪、监测,并按规定报告

D.按法定要求报告

题型:单项选择题 共用题干题

阅读理解。

     The world economy has run into a brick wall. Despite countless warnings in recent years about the need

to address a potential hunger crisis in poor countries and an energy crisis worldwide, world leaders failed to

think ahead. The result is a global food crisis. Wheat, corn and rice prices have more than doubled in the past

two years. And oil prices have increased more than three times since the start of 2004. These food-price

increases, combined with increasing energy costs, will slow if not stop economic growth in many parts of the

world and will even affect political stability. Practical solutions to these problems do exist, but we'll have to

start thinking ahead and acting globally.

     Here are three steps to ease the current food crisis and avoid the potential for a global crisis. The first is to

promote the dramatic success of Malawi, a country in southern Africa, which three years ago established a

special fund to help its farmers get fertilizer and seeds with high productivity. Malawi's harvest doubled after

just one year. An international fund based on the Malawi model would cost a mere $10 per person annually in

the rich world, or S10 billion altogether.

     Second, the U.S. and Europe should abandon their policies of paying partly for the change of food into

biofuels. The U.S. government gives farmers a taxpayer-financed payment of 51 cents per gallon of ethanol

(乙醇) changed from corn. There may be a case for biofuels produced on lands that do not produce foods-tree

crops, grasses and wood products-but there's no case for the government to pay to put the world's dinner into

the gas tank.

     Third, we urgently need to weather-proof die world's crops as soon and as effectively as possible. For a

poor farmer, sometimes something as simple as a farm pond-which collects rainwater to be used in dry weather-

can make the difference between a good harvest and a bad one. The world has already committed to

establishing a Climate Adaptation hind to help poor regions climate-proof vital economic activities such as food

production and health care but has not yet acted upon the promise.

1. An international fund based on the Malawi model would ______.

A. cost each of the developed countries $10 billion per year

B. aim to double the harvest in southern African countries in a year

C. decrease the food prices as well as the energy prices

D. give poor farmers access to fertilizer and highly productive seeds

2. With the second step, the author expresses the idea that ______.

A. it is not wise to change food crops into gas

B. it is misleading to put tree crops into the gas tank

C. we should get alternative forms of fuel in any way

D. biofuels should be developed on a large scale

3. Which of the following is true according to the passage?

A. A rain-collecting pond is a simple safeguard against dry weal.

B. A Climate Adaptation Fund has been established to help poor.

C. The world has made a serious promise to build farm ponds.

D. It makes a great difference whether we develop wood products or not.

4. In the passage, the author calls on us to ______.

A. slow down but not to stop economic

B. develop tree crops, grasses and wood products

C. achieve economic growth and political stability

D. act now so as to relieve the global food shortage

题型:单项选择题 共用题干题

风口明亮耀眼,渣铁温度升高,生铁含[Si]()。

A、升高

B、降低

C、不变

题型:单项选择题 共用题干题

科学管理理论的诞生标志着管理理论由经验主义向科学管理的转变,科学管理理论强调()

A.管理的核心是提高劳动生产率

B.在管理中要重视人的因素

C.管理者的任务是了解本机构的特殊目的和使命

D.管理应包含在经营之中

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