【单选题】

患儿,5岁,3天来眼和下肢水肿,尿少,血压110/82mmHg,尿蛋白(+),红细胞(++++)/HP,AS0600U,最可能的诊断是

A.
急性肾小球肾炎
B.
泌尿系感染
C.
慢性肾小球肾炎
D.
肾炎性肾病
E.
单纯性肾病
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参考答案
参考解析
【单选题】

Passage1

In many of the developing countries in Africaand Asia, the population is growing fast. The reason for this is simple: Womenin these countries have a high birth rate - from 3.0 to 7.0 children per woman.The majority of these women are poor, without the food or resources to care fortheir families. Why do they have so many children? Why don't they limit thesize of their families? The answer may be that they often have no choice. Thereare several reasons for this.

Onereason is economi

In atraditional agricultural economy, large families are helpful. Having morechildren means having more workers in the fields and someone to take care ofthe parents in old age. In an industrial economy, the situation is different.Many children, do not help a family; instead, they are an expense. Thus,industrialization has generally brought down the birth rate. This was the casein Italy, which was industrialized quite recently and rapidly. In the earlypart of the twentieth century, Italy was a poor, largely agricultural countrywith a high birth rate. After World WarⅡ, Italy's economy was rapidly modernized and industrialize

By theend of the century, the birth rate had dropped to 1. 3 children per woman, theworld's lowest.

However,the economy is not the only important factor that influences birth rate. SaudiArabia, for example, does not have an agriculture-based economy, and it has oneof the highest per capita incomes in the worl

Nevertheless,it also has a very high birth rate. Mexico and Indonesia, on the other hand,are poor countries, with largely agricultural economies, but they have recentlyreduced their population growth.

Clearly,other factors are involve

Themost important of these is the condition of women. A high birth rate almostalways goes together with lack of education and low status for women. Thiswould explain the high birth rate of Saudi Arabia. There, the traditionalculture gives women little education or independence and few possibilitiesoutside the home. On the other hand, the improved condition of women in Mexico,Thailand, and Indonesia explains the decline in birth rates in these countries.Their governments have taken measures to provide more education andopportunities for women.

Anotherkey factor in the birth rate is birth control. Women may want to limit theirfamilies but have no way to do so. In countries where governments have madebirth control easily available and inexpensive, birth rates have gone down.This is the case in Singapore, Sri Lanka, and India, as well as in Indonesia,Thailand, Mexico, and Brazil. In these countries, women have also been providedwith health care and help in planning their families.

Thesetrends show that an effective program to reduce population growth does not haveto depend on better economic conditions.3 It can be effective if it aims tohelp women and meet their needs. Only then, in fact, does it have any realchance of success.       (495 words)

According to this passage, Italy today is an example of an _______.

A.
agricultural country with a high birth rate
B.
agricultural country with a low birth rate
C.
industrialized country with a low birth rate
D.
industrialized country with a high birth rate
【A1型选择题】

乙醇使蛋白质沉淀的原理是(    )。

A.

破坏了水化膜

B.

形成二硫键

C.

通过化学共价交联

D.

破坏溶液电荷平衡

E.

使其达到等电点

【单选题】

此题为新题型

A.
[A]
B.
[B]
C.
[C]
D.
[D]
E.
[E]
F.
[F]
G.
[G]
【单选题】

吹填工程量按吹填土方量计算时,总工程量应为设计吹填方量与设计允许超填方量以及地基沉降量之和,超填厚度不应大于(    )。

A.
30cm
B.
20cm
C.
40cm
D.
15cm
【单选题】

关于涉及第三人的合同的履行,下列说法正确的是( )。

A.

 当事人约定由债务人向第三人履行债务,债务人未向第三人履行债务的,应当向第三人承担违约责任

B.

 债权人接受第三人履行后,其对债务人的债权转让给第三人,但是债权人和债务人另有约定的除外

C.

 债务人不履行债务,第三人对履行该债务具有合法利益的,第三人有权向债权人代为履行,但是只能由债务人履行的除外

D.

 当事人约定由第三人向债权人履行债务,第三人履行债务不符合约定的,第三人应当向债权人承担违约责任

【单选题】

根据系统理论的观点,下列关于安全与危险的描述中,错误的是(  )。

A.
安全是一个相对的概念
B.
危险是一种主观的判断
C.
可以根除一切危险源和危险
D.
安全工作贯穿于系统整个寿命周期
【单选题】

用于耐甲氧西林的金黄色葡萄球菌感染的是()

A.
万古霉素
B.
克林霉素
C.
克拉霉素
D.
红霉素
E.
拉氧头孢
【单选题】

t1/2最长的药物是

A.
氟桂嗪
B.
硝苯地平
C.
地尔硫
D.
维拉帕米
E.
氨氯地平
【单选题】

我国历史上曾有“性也者,与生俱生也”的说法,这属于(  )观点。

A.
内发论
B.
外铄论
C.
辐合论
D.
多因素相互作用论
【单选题】

以下(  )交易机制的特点为:投资者买卖证券的对手是其他投资者。

A.
定期交易
B.
连续交易
C.
指令驱动
D.
报价驱动