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问题 单项选择题

某建筑公司与某厂签订了修建建筑面积为2800m2的工业厂区的施工合同。建筑公司编制的施工方案和进度计划已获监理工程师批准。该工程的基坑开挖土方量为4000m3。基坑施工方案规定：土方工程采用租赁一台斗容量为1m3的反铲挖掘机施工。

盆式挖土是先开挖基坑中间部分的土，周围四边留土坡，土坡最后挖除。其优点是（）。

A．周边的土坡对围护墙有支撑作用，有利于减少围护墙的变形

B．可以加快挖土和运土的速度

C．由于首先挖去基坑四周的土，支护结构受荷时间长，在软黏土中的时间显著，对于支护结构受力不利

D．大量的土方不能直接外运，需集中提升后装车外运

答案

参考答案：A

单项选择题

蝉蜕的功效是（）

A．清热解毒

B．息风止痉

C．燥湿止带

D．行气宽中

E．解表除烦
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单项选择题

The "standard of living" of any country means the average person’s share of the goods and services which the country produces. A country’s standard of living, (1) , depends first and (2) on its capacity to produce wealth." Wealth" in this sense is not money, for we do not live on money (3) on things that money can buy. "Goods" such as food and clothing, and "services" such as transport and " (4) ". A country’s capacity to produce wealth depends upon many factors, most of (5) have an effect on one another. Wealth depends (6) a great extent upon a country’s natural resources. Some regions of the world are well supplied with coal and minerals, and have a fertile soil and a (7) climate; other regions possess none of them.

Next to natural resources (8) the ability to turn them to use. China is perhaps as well (9) as the USA in natural resources, but suffered for many years from civil and (10) wars, and (11) this and other reasons was (12) to develop her resources. (13) and stable political conditions, and (14) from foreign invasion, enable a country to develop its natural resources peacefully and steadily, and to produce more wealth than another country equally well (15) by nature but less well ordered.

A country’s standard of living does not only depend upon the wealth that is produced and consumed (16) its own borders, but also upon what is indirectly produced through international trade. (17) , Britain’s wealth in foodstuffs and other agricultural products would be much less if she had to depend only on (18) grown at home. Trade makes it possible for her surplus manufactured goods to be traded abroad for the agricultural products that would (19) be lacking. A country’s wealth is, therefore, much influenced by its manufacturing capacity, (20) that other countries can be found ready to accept its manufactures.

19（）

A.likely

B.likewise

C.certainly

D.otherwise
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