下列SQL语句中，用于修改表结构的是( )。A．ALTER B．CREATE C．

孕妇，26岁，妊娠38周，产前检查：NST显示：胎心基线160～170次/分，30分钟内出现胎动3次，胎动时胎心率上升到180～190次/分，持续20秒。可考虑为

A．胎儿心动过速

B．胎心率早期减速

C．胎儿心动过缓

D．胎心率变异减速

E．胎心率晚期减速

识别液氯储存单元风险类型，给出风险源项分析内容

阅读理解。

                                                 Longer Lives for Wild Elephants

    Most people think of zoos as safe places for animals, where struggles such as difficulty finding food and avoiding predators don't exist. Without such problems, animals in zoos should live to a ripe old age.     

     But that may not be true for the largest land animals on Earth. Scientists have known that elephants in

zoos often suffer from poor health. They develop diseases, joint problems and behavior changes.

Sometimes, they even become unable to have babies.

    To learn more about how captivity (监禁) affects elephants, a team of international scientists compared the life spans of female elephants born in zoos with female elephants living outdoors in their native lands.

Zoos keep detailed records of all the animals in their care, documenting factors such as birth dates,

illnesses, weight and death. These records made it possible for the researchers to analyze 40 years of

data on 800 African and Asian elephants in zoos across Europe. The scientists compared the life spans of

the zoo-born elephants with the life spans of thousands of female wild elephants in Africa and Asian

elephants that work in logging camps (伐木场), over approximately the same time period.

    The team found that female African elephants born in zoos lived an average of 16.9 years. Their wild

counterparts who died of natural causes lived an average of 56 years--more than three times as long.

Female Asian elephants followed a similar pattern. In zoos, they lived 18.9 years, while those in the

logging camps lived 41.7 years.    

    Scientists don't yet know why wild elephants seem to live so much better than their zoo-raised counterparts. Georgia Mason, a biologist at the University of Guelph in Canada who led the study, thinks stress

and obesity (肥胖) may be to blame. Zoo elephants don't get the same kind of exercise they would in the wild, and most are very fat. Elephant social lives are also much different in zoos than in the wild, where they live in large herds and family groups.

    Another finding from the study showed that Asian elephants born in zoos were more likely to die early

than Asian elephants captured in the wild and brought to zoos. Mason suggests stress in the mothers in

zoos might cause them to have babies that are less likely to survive.

The study raises some questions about acquiring more elephants to keep in zoos. While some threatened

and endangered species living in zoos reproduce successfully and maintain healthy populations, that

doesn't appear to be the case with elephants.

1. According to the first two paragraphs, unlike other zoo animals, zoo elephants _______ .

A. have difficulty eating food.  

B. 1ive to a ripe old age. 

C. are not afraid of predators.  

D. develop health problems.

2. Which of the following about the international scientists' research on the life spans of elephants is

    NOT true? (See paragraph 3)?

A. They compared zoo elephants with wild elephants. 

B. They kept detailed records of all the elephants in their care. 

C. They analyzed the records of the elephants kept in zoos. 

D. The zoo-born elephants they studied are kept in European zoos.

3. What do the scientists find in their research?

A. Female elephants live longer than male elephants. 

B. Female zoo elephants live longer than their wild counterparts. 

C. Female zoo elephants die much earlier than their wild counterparts. 

D. Elephants in zoos and those in the wild enjoy the same long life spans.

4. Which of the following does the author suggest in the last paragraph? 

A. It may not be a wise policy to keep elephants in the zoo. 

B. Elephants are no longer an endangered species. 

C. Zoo-born elephants should be looked after more carefully. 

D. Zoos should keep more animals except elephants.

2013年4月29日，蓝田公司向甲市城市规划管理局提出办理建设工程规划许可的申请，申请在殷都区鼎盛广场（某住宅小区）南侧建设蓝田港湾住宅楼。2013年5月13日，甲市城市规划管理局将工程规划在《甲市日报》进行公示，并依法举行了昕证。2013年11月24日，甲市城市规划管理局依法批准了该工程规划。工程进行过程中，鼎盛广场内居民赵某、孙某、胡某、张某等四人，以蓝田港湾住宅楼将四人的院落作为通道使用，对四人的生命财产安全造成不利影响，且工程规划不合理影响四人的采光权、通风权、隐私权为由提起行政诉讼。

根据《行政诉讼法》，人民法院审查（），属于对证据真实性的审查。

A.发现证据时的客观环境

B.是否有影响证据效力的违法情形

C.提供证据的人或者证人与当事人是否具有利害关系

D.证据是否符合法定形式

E.证据是否为原物、原件，复制件、复制品与原物、原件是否相符

作为EPCDS服务中的最重要组成部分，对象命名服务ONS储存提供EPC信息服务的地址信息以（）作为搜寻的主键值。

A、EPC编码

B、产品电子码

C、二维码

D、电子识别码