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问题 单项选择题

设备开箱检查，应检查 (50) 各项并做好记录。
①箱号、箱数以及包装情况
②设备的名称、型号和规格
③设备的技术文件、资料及专用工具
④设备有无缺损件、表面有无损坏和锈蚀等
⑤设备性能、参数等

A．①②③④⑤

B．①②③④

C．②③④⑤

D．①③④⑤

答案

参考答案：B

解析： 设备性能、参数等内容需加电连通之后才能检查，不属于设备开箱检查的内容。
选择B正确。

判断题

水泥是混凝土组成材料中最重要的材料，也是成本支出最多的材料，更是影响混凝土强度、耐久性最重要的影响因素。
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单项选择题

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.

（5）是（）

A.over

B.across

C.within

D.above
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