易于为年幼儿童学习和掌握的刷牙方法( )
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 _______.
男,68岁。高血压病史10年,高脂血症5年,未规律服药。今晨起床时突发左侧肢体无力,摔倒在地,伴头痛、恶心。查体:血压200/100mmHg,意识模糊,右侧鼻唇沟变浅,右侧上肢肌力0级、下肢肌力1级,右侧巴氏征阳性。急诊颅脑CT显示左侧基底节区高密度影,周围伴低密度水肿带。最可能的诊断是( )。
脑梗死
脑组织软化
蛛网膜下腔出血
脑脓肿
脑出血
患者,男,40岁,因易乏力、间歇头晕3个月就诊,伴肢端麻木,无多尿、口渴。体检:身高165cm,体重75kg,BP18.7/12.3kPa(140/92mmHg),心肺无异常,双膝反射减弱,化验空腹血糖(FPG)6.5mmol/L(117mg/dl),餐后2小时血糖(2HPG)12mmol/L(216mg/dl)
为明确诊断,下一次最需要做的检查是