导致X线照片模糊的因素，哪项不是 A．X线管焦点的大小 B．被检体的运动 C．屏胶组

安徽省黄山市一所寄宿制民办学校的高一学生小雷(16岁)，某日凌晨从三楼宿舍区攀爬教室窗户时，不幸坠楼身亡。日前，家长起诉到人民法院，要求学校在这起事故中承担赔偿责任，赔偿小雷亲属损失及抚慰金共10万元。以下哪一种观点不妥

A．该学校作为寄宿制学校，在这起事故发生前已出现多起学生从外廊通道与教学楼衔接处攀爬外出的情况，被告已知道并处理过学生，但没有及时采取有效措施防止学生继续攀爬，管理上存在疏漏，应承担次要责任

B．在此案中学生的损害虽然是自身过错行为造成的，但无疑学校的不作为也是违反了其自身负有的义务

C．受害人小雷事发时16岁，对自身行为缺少自控能力，虽自身对事故的发生有重大过错，但不应承担主要民事责任

D．对于学校的这种不作为，判令其对学生的损害承担的次要赔偿责任正是一种惩罚性的责任。同时这种惩罚也是侵权法预防功能的体现

     Life on earth depends on water, and there is no substitute for it. The current assumption is that our

basic needs for water-whether for drinking, agriculture, industry or the raising of fish will always have to

be met. Given that premise (前提) , there are two basic routes we can go:more equal access to water or

better engineering solutions.

     Looking at the engineering solution first, a lot of my research concentrates on what happens to

wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almost

entirely driven by the seasonal changes of the river-the pulse of the water. And the fact is that if you build

a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by a

lack of information. But in the near future, governments will have no excuse for their ignorance.

    The engineers' ability to control water flows has created new kinds of unpredictability too. Dams in

Africa have meant fewer fish, less grazing and less flood- plain (洪泛区) agriculture-none of which were

expected. And their average economic life is assumed to be thirty years. Dams don't exist forever, but

what will replace them is not clear.

     The challenge for the future is to find new means of controlling water. Although GM technology

(转基因) will allow us to breed better dry land crops, there is no market for companies to develop

crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay for

research on locally appropriate crops in the Third World?

1. What's the main idea of this passage?  

A. The challenge for the future.

B. The engineering solutions to water resource and their limitation.

C. The basic means of controlling water.

D. The challenge for developing crops.

2. Which of the following statements is NOT true for meeting our basic needs for water? 

A. Water resource should be used more reasonably.

B. More dams should be built in river basins.

C. More wetlands should be protected from destruction.

D. More dry-land crops could be developed in Africa.

3. The author suggests that governments will have no excuse for their careless ignorance in the future

because      . 

A. the ecological destruction will be known to the public by researchers

B. the ecological destruction will no longer be a problem in the future

C. the future is an information age

D. governments will face greater challenge in the future

4. The author mentions all the problems caused by dams EXCEPT       . 

A. fewer fish

B. less grazing land

C. less farming land

D. less floodplain agriculture

5. The last sentence probably implies that           .   

A. no one will invest in developing locally appropriate crops in Africa

B. researchers have no interest in developing dry land crops

C. research on locally appropriate crops in the Third World may be profitable

D. There is less water resource in the Third World

在项目实施中间的某次周例会上，项目经理小王用下表向大家通报了目前的进度。根据这个表格，目前项目的进度（）

A.提前于计划7%

B.落后于计划18%

C.落后于计划7%

D.落后于计划7.5%

患者，男，54岁。腹胀且痛，便秘纳呆，时有如条状物聚起在腹部，重按则胀痛更甚，苔腻，脉弦滑。应诊断为（）

A.气结血瘀之积证

B.肝气挟痰之聚证

C.食滞痰阻之聚证

D.肝郁气滞之聚证

E.气郁血瘀之积证

《低压锅炉水质》标准中，对蒸汽锅炉锅水总碱度的规定的依据是什么？