下列说法正确的是 A.pH=2的溶液中的c(H+)是pH=4的溶液中的c(H+)

题型:选择题

问题:

下列说法正确的是

A.pH=2的溶液中的c(H+)是pH=4的溶液中的c(H+)的2倍

B.等浓度的Na2CO3溶液的pH大于NaHCO3溶液的pH

C.25℃时纯水的pH低于100℃时纯水的pH

D.pH=3的硫酸溶液中的c(H+)是pH=3的盐酸溶液中c(H+)的2倍

考点:燃烧热水的离子积常数水电离的影响因素水的电离平衡
题型:选择题

有关立案的理解错误的是:

A.对于控告人的控告,公安机关或检察院不予立案的,应当将不立案的理由及时通知控告人

B.控告人对不立案决定不服,可以申请复议

C.人民检察院对于不属于本院管辖的控告应当告知控告人向有管辖权的机关提出

D.被害人认为公安机关应立案而未立案,可以向人民检察院提出,人民检察院应当要求公安机关说明不立案理由

题型:选择题

In the old days, children were familiar with birth and death as part of life. Now this is perhaps the first generation of American youngsters who have never been close by during of the birth a baby and have never experienced the death of a family member.

Nowadays when people grow old, we often send them to nursing homes. When they get sick, we send them to a hospital, where children are forbidden to visit terminally (晚期的)in patients— even when those patients are their parents. This deprives(剥夺)the dying patient of family members during the last few days of his life and it deprives the children of an experience of death, which is an important learning experience.

Some of my colleagues and I once interviewed and followed about 500 terminally in order to find out what they could teach us and how we could be of more benefit, not just to them but to the members of their families as well. We were most impressed by the fact that even those patients who were not told of their serious illness were quite aware of its potential outcome.

It is important for family members, and doctors and nurses to understand these patients’ communication in order to truly understand their needs, fears and fantasies . Most of our patients welcomed another human being with whom they could talk openly, honestly, and frankly about their trouble. Many of them shared with us their great need to be informed, to be kept up - to - date on their medical condition and to be told when the end was near. We found out that patients who had been dealt with openly and frankly were better able to cope with the coming of death and finally to reach a true stage of acceptance before death.

小题1: The elders of today's Americans _______ .

A.are often absent when a family member is born or dying

B.are unfamiliar with birth and death

C.usually see the birth or death of a family member

D.have often experienced the fear of death as part of life小题2: Children in America are deprived of the chance to________.

A.visit a patient at hospital

B.visit their family members

C.learn how to face death

D.look after the patients小题3: The need of a dying patient for people to accompany him shows________.

A.his wish for communication with other people

B.his fear of death

C.his unwillingness to die

D.he feels very upset about his condition小题4: It may be concluded from the passage that________.

A.dying patients should be truthfully informed of their condition

B.dying patients are afraid of being told of the coming of death

C.most patients are unable to accept death until it can’t be avoided

D.most doctors and nurses understand what dying patients need

题型:选择题

在可行性研究中,一个适当的内部审计角色是()。

A.作为最初调查的执行者

B.确认可行性研究是否考虑了成本/收益关系

C.确定准备规范手册的需求

D.参与起草计算机采购和实现的推荐意见

题型:选择题

堤身可能向下沉陷的原因有()。

A.岩层不稳定

B.路基因填料(主要指填土)不当

C.填筑方法不合理

D.压实不足

E.在荷载、水和温度的综合作用下

题型:选择题

为了减少汽车尾气中NO和CO污染大气,拟按下列反应进行催化转化NO(g)+CO(g)=1/2N2(g)+CO2(g),(298.15K)=-374kJ/mol。为提高转化率,应采取的措施是:()

A.低温高压

B.高温高压

C.低温低压

D.高温低压

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