4岁，男性。反复咳嗽3个月，查体：体温正常，浅表淋巴结（-），咽（-），两肺多哮鸣音

“对于历史上任何一个闯入并扎根于农耕文化圈的游牧民族来说，接受同化是他们的终极命运”。北魏孝文帝顺应时代潮流，毅然进行改革。下列不属于孝文帝改革内容的是[ ]

A．说汉语

B．穿汉服

C．改汉姓

D．以法治国

Do you see _____?[ ]

A. the picture in the wall            

B. the picture on wall            

C. the picture on the wall

.

Do you want to live another 100 years or more? Some experts say that scientific advances will

one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.

“ I think we are knocking at the door of immortality (永生),” said Michael Zey, a Montclair State University business professor and author of two books on the future. “ I think by 2075 we will see it and that’s a conservative estimate.”

At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology(纳米技术) make it likely that humans will live in the future beyond what has been possible in the past. “ There is a great push so that people can live from 120 to 180 years,” he said. “ Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years.”

However, many scientists who specialize in aging are doubtful about it and say the human body is just not designed to last about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.

Scientists also differ on what kind of life the super aged might live. “ It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?” said Leonard Poon, director of the University of Georgia Gerontology Center. “ At present people who could get to that point are not in good health at all.”

67. By saying “ we are knocking at the door immortality”, Michael Zey means_____.

A. they believe that there is no limit of living

B. they are sure to find the truth about long living

C. they have got some ideas about living forever

D. they are able to make people live past the present life span

68. Donald Louria’s attitude toward long living is that_____.

A. people can live from 120 to 180

B. it is still doubtful how long humans can live

C. the human body is designed to last about 120 years

D. it is possible for humans to live longer in the future

69. The underlined “ it” (Para. 4) refers to_____.

A. a great push

B. the idea of living beyond the present life span

C. the idea of living from 200 to 300

D. the conservative estimate

70. What would be the best title for this text?

A. Living longer or not

B. Science, technology and long living

C. No limit for human life

D. Healthy lifestyle and long living

下列哪项是保险法律规定的险种开发的必经程序( )

A．报批
B．可行性分析
C．鉴定
D．市场调查

长沙市规划的第二处历史文化街区是哪一个？