快速进展型牙周炎为 A．牙龈卟啉单孢菌 B．粘性放线菌 C．伴放线放线杆菌 D．梭形

如果一个儿童体重与身高的比值超过本地区80％的儿童的水平，就称其为肥胖儿。根据历年的调查结果，15年来，临江市的肥胖儿的数量一直在稳定增长。如果以上断定为真，则以下哪项也必为真

A．临江市每一个肥胖儿的体重都超过全市儿童的平均体重。

B．15年来，临江市的儿童体育锻炼越来越不足。

C．临江市的非肥胖儿的数量15年来不断增长。

D．15年来，临江市体重不足标准体重的儿童数量不断下降。

Modern industrial society grants little status to old people. In fact, such a society has a system of built-in obsolescence. There is no formal system for continuing our education throughout our life in order to keep up with rapidly changing knowledge. When our education and job skills have grown obsolete, we are treated exactly like those who have never gained an education or job skills and are not encouraged or given the opportunity to begin anew.As a society becomes more highly developed, the overall status of older people diminishes. Improved health technology creates a large pool of old people, who compete for jobs with the young. However, economic technology lowers the demand for workers and creates new jobs for which the skills of the aged are obsolete, forcing older people into retirement. At the same time, young people are being educated in the new technology and are keeping pace with rapid changes in knowledge. Finally, urbanization creates age-segregated neighborhoods. Because the old live on fixed incomes, they must often live in inferior housing. All these factors — retirement, obsolete knowledge and skills, inferior standards of living — lower the status of the aged in society.A century ago, when one could expect to live only to 50 or so, the life span more or less coincided with the occupation and family cycle. But today the average life span allows for fifteen to twenty years of life after these cycles. It appears that our life span is outpacing our usefulness in society.

Which of the following would be the best title for this passage

A．The Problem of Aging

B．Social Structures

C．Economic Technology

D．Continuing Education

烘炉时什么时候点火（）

A.当分烟道吸力达到120Pa以上时，才具备炭化室烘炉点火条件

B.烘烟囱时，直接可以给炭化室烘炉点火

C.用气体燃料烘烟囱时，可在炭化室点火前3～5天点火

D.一次小灶炉温达到30～50℃，可将另一半小灶全部点火

发热，汗出不解，口渴心烦，胸闷气喘，咳嗽痰多，苔白厚，脉滑数。其病机为（）

A.寒邪外束，暑湿内阻

B.暑湿壅滞肺络

C.暑湿困阻中焦

D.暑湿弥漫三焦

E.暑湿伤及上焦肺卫

休克病人的体位应选择（）。

A.水平卧位

B.半卧位

C.头低脚高位

D.侧卧位

E.上身抬高20～30°，下肢抬高15～20°的体位