1岁小儿,站立不稳,诊断为佝偻病活动期。下列治疗与护理哪项不妥 A.增加寓含维生素D

题型:单项选择题

问题:

1岁小儿,站立不稳,诊断为佝偻病活动期。下列治疗与护理哪项不妥

A.增加寓含维生素D及矿物质的食物
B.鼓励母亲多抱患儿到户外晒太阳
C.加强站立和行走锻炼
D.口服维生素D
E.肌内注射维生素D

考点:护士护理考试护士专业实践能力初级护士专业实践能力
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某校初一年级举行篮球循球赛,比赛规则是:胜一场得2分,平一场得0分,负一场得-2分,比赛结果初一(10)班2胜1平4负,则初一(10)班在这次比赛中的得分为(     )。

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按照“先进后出”原则组织数据的数据结构是( )。

A.队列

B.栈

C.双向链表

D.二叉树

题型:单项选择题

黑色金子——石油

张春贺

       ①石油被称作工农业生产中流淌着的黑色血液,是人类生活中不可或缺的重要能源。很多交通运输工具如汽车、飞机等使用的汽油、航空煤油等都是石油产品,日常生活中部分电力的供应也来自石油。美国有45%的能源供应来自石油;我国能源供应中石油所占比例约为23%。据不完全统计,我们生活中有6000多种产品,例如润滑油、橡胶、塑料、合成纤维、涂料等等,都是石油产品。石油像黑色的金子一样,吸引着人们去寻找、去开采。 

       ②石油是怎么生成的呢?研究表明,石油的生成至少需要200万年的时间,在现今已发现的油藏中,时间最老的可达到5亿年之久。在地球不断演化的漫长历史过程中,有一些“特殊”时期,如古生代和中生代,大量的植物和动物死亡后,构成其身体的有机物质不断分解,与泥沙或碳酸质沉淀物等物质混合组成沉积层。由于沉积物不断地堆积加厚,导致温度和压力上升,随着这种过程的不断进行,沉积层变为沉积岩,进而形成沉积盆地,这就为石油的生成提供了基本的地质环境。

       ③伴随各种地质作用,沉积盆地中的沉积物持续不断地堆积。当温度和压力达到一定程度后,沉积物中动植物的有机物质转化为碳氢化合物分子,最终生成石油和天然气。 

       ④分散在岩层中的石油又是怎样聚集在一起的呢? 石油不像水聚集在水库中那样聚集在沉积盆地最初形成的岩石——生油源岩,也就是沉积岩中,而是透过岩石的孔隙,被挤压到压力分布更低的岩石裂隙和孔隙中,直至停留在被完全封闭的储集岩中。储集岩是聚集石油的岩石。储集岩形成了储藏石油的地质环境——圈闭构造,它是阻止石油被继续运移的地质构造。石油的这种聚集方式就如同水被一块海绵吸收一样。正因为有了储集岩和圈闭构造,石油才能够安静地在地下定居,等待发掘者的到来。

       ⑤地质学家认为,在漫长的地质过程中,已有很大一部分石油因圈闭构造遭到各种地质作用的破坏而流失掉。在经历生成、运移和储集后,石油一般分布在近地表的范围内。

       ⑥可以看出,特定的时间与空间对应着生油环境、沉积盆地的形成。相当规模的生油源岩、储集岩及储集岩形成的圈闭构造等几个要素,是生成石油和发现石油的核心。在石油的生成过程中,上述诸要素任何一项缺失或“不佳”,都会对石油生成全过程产生影响或破坏,导致仅形成规模较小的石油生成、聚集,而不具备商业化开采的价值。

1.根据选文内容填空。

     选文②~⑥段主要介绍了                 和                 两方面的内容。

2.根据选文②~③段内容,选出句子排列顺序符合原文的一项[ ]

     ①沉积物持续加厚、温度和压力上升,沉积层变为沉积岩,进而形成沉积盆地。 ②伴随各种地质作用,沉积盆地中的沉积物不断堆积。 ③动植物死亡后,经过分解、混合,成为沉积层。 ④当温度和压力上升到一定程度,沉积物中动植物的有机物质转化为碳氢化合物分子,最终生成石油和天然气。

A.①②③④

B.③①②④

C.③②①④

D.③①④②

3.选文第①段中画线部分使用了打比方的说明方法有什么作用?

                                                                                                         

4. 选文第⑤段“石油一般分布在近地表的范围内”一句中,画线词语“一般”能否删去? 为什么?

                                                                                                        

5.请你结合选文内容并联系生活实际,说一说近年来石油价格大幅上涨的主要原因。

                                                                                                        

题型:单项选择题

E

The “Monday morning feeling” could be a crushing pain in the chest which leaves y

ou sweating and gasping for breath. Recent research from Germany and Italy shows that heart attacks are more common on Monday mornings and doctors blame the stress of returning to work after the weekend break.

 The risk of having a heart attack on any given day should be one in seven, but a six-year study helped by researchers at the Free University of Berlin of more than 2600 Germans showed that the average person had a 20 percent high chance of having a heart attack on a Monday than on any other day.

  Working Germans are particularly not protected against attack, with a 33 percent higher risk at the beginning of the working week. Non-workers, by comparison, appear to be no more at risk on a Monday than any other day.

 A study of 11000 Italians proved 8 a.m. on a Monday morning as the most stressful time for the heart, and both studies showed that Sunday is the least stressful day, with fewer heart attacks in both countries.

 The findings could lead to a better understanding of what is the immediate cause of heart attacks, according to Dr Stefan Willich of the Free University. “We know a lot about long-term risk factors such as smoking and cholesterol (胆固醇) but we don’t know what actually causes heart attacks, so we can’t give clear advice on how to prevent them,” he said.

 Monday mornings have a double helping of stress for the working body as it makes rapid change from sleep to activity, and from the relaxing weekend to the pressures of work.

 “When people get up, their blood pressure and heart rate go up and there are hormonal (内分泌) changes in their bodies,” Willich explained. “ All these things can have an unfavorable effect in the blood system and increase the risk of a clot (血凝块) in the arteries (动脉) which will cause a heart attack.

  “When people return to work after a weekend off, the pace of their life changes. They have a higher workload, more stress, more anger and more physical activity,” said Willich.

72.Monday morning feeling, as this passage shows, _________.

A.is not so serious as people thought

B.is harmful to working people in developed countries

C.is the first killer in Germany and Italy

D.is created by researchers in Germany and Italy

73.To protect people from heat attacking, doctors have paid much attention to __________-.

A.people’s working time      B.people’s living place

C.people’s diet and life style   D.people’s nationalities

74.It can be learned from the passage that heart attack has nothing to do with __________.

A.blood pressure     B.heart rate      C.hormonal changes     D.blood group

75.If the researchers give us some advice to avoid Monday morning feeling, what might it be?

A.Stop working on Monday           B.Create a pleasant working environment

C.Get up late on Monday morning  D.Do to work with a doctor

题型:单项选择题

科学家进行一项实验,每隔五小时做一次记录。做第十二次记录时,挂钟的时针恰好指向9。问第一次做记录时,时针指向几( )

A.8
B.5
C.2
D.3

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