体轻,质松而韧,横断面可见外层为海绵状物,内层为许多放射状排列的小室,室内各有一细小椭圆形的卵,深棕色,有光泽的是( )
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 _______.
下列规范性法律文件中,属于地方政府规章的是( )。
患者男,27岁。右手皮肤外伤1周,未系统诊治。1天前发现右侧前臂起红丝两条,向肘部发展,红丝处皮肤质硬,触痛,伴发热、乏力。可选的外治法为
某建筑高度96m的综合楼,有办公、酒店商业和娱乐功能。一至四层的裙房设有营业厅和办公室,地下一层夜总会疏散走道两侧和尽端设有5个卡拉0K小包间,营业厅的2个疏散门需要通过疏散走道至疏散楼梯间。该建筑按规范要求设置消防设施。下列建筑内疏散走道的设计中,正确的是( )。
女,45岁。反复右下腹痛1年,伴便秘、口腔溃疡,无发热及乏力。否认结核病史及结核密切接触史。查体:右下腹可触及边界不清的包块,可移动,压痛阳性。为明确诊断,最重要的检查是( )。
粪隐血
粪查找抗酸杆菌
腹部CT
结肠镜检查及活检
腹部B超
某男,36岁,患慢性肾炎5年,求中医诊治,希望配服中成药,以缓解病情。症见浮肿,腰痛,乏力,小便不利,舌红,苔黄腻。证属湿热内蕴兼气虚。据此,医师处以肾炎四味片。3个月后,患者又来就诊。诉云:服上药后,浮肿减轻,尿量有增,乏力大减。3天前,因感冒咽痛,浮肿加重,不但肢体浮肿,又添眼睑浮肿,伴发热、微恶风,尿痛、尿急而少,纳可,大便尚调,尿检有蛋白与潜血。证属风水水肿。治当宣肺解表、利水消肿,医师处以麻黄、连翘、金银花、茯苓、猪苓、泽泻车前子、赤小豆、芦根。7剂。方中能宣肺利水的药是()