职业流行病学调查属下列何种调查A．健康监护方法 B．分析流行病学调查 C．正常体检

阅读理解。

     Most American families are smaller than the families in other countries. Most American families have one

or two parents and one or two children each.

     Children in the US will leave their parents' home when they grow up. They usually live far from their

parents because they want to find good jobs. They often write to their parents or telephone them. And they

often go to visit their parents on holiday.

     Parents usually let their children choose their own jobs. Americans think it important for young people to

decide on their lives by themselves.

     Children are asked to do some work around their house. And in many families, children are paid for doing

some housework so that they learn how to make money for their own use.

1. The size of most American families is ______ that of other countries. [ ]

A.larger than

B.smaller than

C.as big as

D.as small as

2. When children grow up,they leave their parents' home to ______. [ ]

A.get married

B.be free

C.find good jobs

D.go to university

3. They visit their parents ______. [ ]

A.on weekdays

B.on weekends

C.on holiday

D.very often

4. In America, children are allowed to ______.[ ]

A.choose their own jobs

B.get pay for doing house work

C.1ive with their parents when they grow up

D.Both A and B

5. Which of the following statements is WRONG? [ ]

A.Children have the freedom to choose their own job.

B.Parents don't ask their children to do the housework.

C.Parents think it important for children to make their own decision.

D.Children in America have chances to learn to make money at home.

蛋白质的功能性质定义

男性，27岁，哮喘重度发作查体：患者端坐呼吸，大汗淋漓话语不连贯，下列哪一项体征预示病严重()

A．肺内广泛高响度哮鸣音

B．肋间隙增宽

C．肺叩诊过清音

D．两肺呼吸音低，偶闻散在哮鸣音

E．心脏绝对浊音界缩小

低渗性脱水的体液容量改变为

A．细胞内液显著减少，细胞外液轻度减少

B．细胞内液显著减少，细胞外液正常

C．细胞外液显著减少，细胞内液轻度减少

D．细胞内、外液按比例减少

E．细胞外液减少，细胞内液正常

经济不仅是人们日常生活的一部分，更是一个国家综合国力的基础。阅读下列材料并回答问题。材料一：英国依仗工业革命所形成的技术基础，高速发展对外商业贸易在19世纪中期一跃成为最大的经济强国，占据了工业霸主的地位，把竞争对手远远地抛在了后面„„而世界各国都必须毫无保留的为英国的商品敞开大门，若有不从者，枪炮伺候。材料二：洋务派先后创办了一大批军工企业逐步做到了“凡一切枪炮、轮船、军火均能自造。”（洋务运动）把“近代工业导入中国，开始了中国的机器时代”，使中国在工业近代化道路上迈出了可喜的一步。然而，如众所周知，洋务运动既未能使中国强，也未能使中国富„„甲午战争的失败，最终宣告了这一运动的破产。材料三：（20世纪90年代）信息产业成为推动美国经济增长的主要部门。美国新兴的信息产业企业在全球市场中的优势尤为突出，全球化背景下的国际贸易的不断扩大和各国国内市场的开放为这些美国产品迅速占领全球市场提供了便利。

根据材料二，列举两个洋务派创办的“军工企业”。请引用材料二原文评价洋务运动的积极作用。