关于乳牙龋损临床表现描述哪项是错误的A．患龋率高，发病早 B．龋齿多发，龋蚀范围广

在一块长45米、宽28米的长方形地上铺一层4厘米厚的沙土．

（1）需要多少立方米沙土？

（2）一辆车每次运送1.5立方米的沙土，至少需要运多少次？

下列除哪项外都是疫毒痢的治疗原则：（）

A.开闭

B.泄邪

C.清热

D.止泻

E.固脱救逆

地籍测量以测定（）为重点，实地无论有无明显界线，都必须查明、测量界址点线并标定于地籍图上。

A.宗地

B.界址

C.界址点

D.界址线

罪犯群体动力正负与否，取决于监狱对罪犯群体的（）及其对罪犯（）力度。

In the United States, older people rarely live with their adult children. But in many other cultures children are expected to care (1) their aged parents. In some parts of Italy, the percentage of adult children who (2) with their parents (3) 65 to 70 percent. In Thailand, too, children are expected to take care of their elderly parents; few Thai elderly live (4) . What explains these differences in living arrangements (5) cultures Modernization theory (6) the extended family household to low levels of economic development. In traditional societies, the elderly live with their children in large extended family units for economic reasons. But with modernization, children move to urban areas, leaving old people (7) in (8) rural areas. Yet modernization theory cannot explain why extended family households were never common in the United States or England, or why families in Italy, which is fully modernized, (9) a p tradition of intergenerational living. Clearly, economic development alone cannot explain (10) living arrangements. Another theory associated intergenerational living arrangements with inheritance patterns. In some cultures, the stem family pattern of inheritance (11) . (12) this system, parents live with a married child, usually the oldest son, who then (13) their property when they die. The stem family system was once common in Japan, but changes in inheritance laws, (14) broader social changes brought (15) by industrialization and urbanization, have (16) the (17) .In 1960 about 80 percent of Japanese over 65 lived with their children; by 1990 only 60 percent did-a figure that is still high (18) U.S. standards, but which has been (19) steadily. In Korea, too, traditional living arrangements are (20) : the percentage of aged Koreans who live with a son declined from 77 percent in 1984 to 50 percent just 10 years later. Although most elderly Koreans still expect to live with a son, their adult children do not expect to live with their children when they grow old.

2（）

A.reside

B.recite

C.redeem

D.rebel