属于雌激素受体调节药的是

心俞穴的定位是(     )

下列各项，不属苯妥英钠临床应用的是

下列生理效应中，属于交感神经系统兴奋后出现的是（ ）。

在加工厂加工钢筋接头时，一般应采用（   ）。

急性中毒者，瞳孔扩大，可见于（    ）

家庭债务管理中借贷活动是按以下哪种顺序（  ）
①根据现有的收支结余情况对可贷金额进行计算
②模拟借贷后的家庭财务报表
③对未来的现金流进行模拟

（2016山东）皮亚杰的“三山实验”证实了儿童思维带有明显的特点，即（）。

患者，女，29岁 。已婚2年一直未孕，既往月经周期26～28天，行经期4～6天 。现停经45天，突然左下腹撕裂样剧痛，并伴头晕恶心，面色苍白 。不应采取的措施是

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)

Saudi Arabia is mentioned in the passage because it shows that _______.

当挖槽终端水域受限，挖泥船挖到终点后无法调头时，耙吸挖泥船应采用的施工方法是（       ）。