以政府调研员的身份，用不超过350字的篇幅，提出解决给定资料所反映问题的方案。要有条

前囟早闭或过小见于______________，前囟饱满反映______________。

下图是氧元素在周期表中的信息，下列说法正确的是

A．氧元素原子序数为8

B．氧原子核内质子数为16

C．氧元素属于金属元素

D．氧元素在地壳的含量为16%

阅读理解

     The storage of classified research at all 24 labs run by the US Department of Energy was shut down

this week after officials decided that the security problems recently found at the Los Alamos National

Laboratory in New Mexico might also exist elsewhere.

     Several computer disks went missing at Los Alamos earlier this month, forcing Energy Secretary

Spencer Ahraham to stop all work at the lab until the problems are found out. As of 26 July, two missing

disks had still not been found, and 15 employees had been suspended in connection with the

disappearance.

      Now all energy labs will stop doing classified research that involves (需要) removable storage

devices-such as computer disks-until all the devices are given explanation for and new procedures are

in place for monitoring their handling by laboratory employees.

      "While we have no evidence that the problems being investigated are present elsewhere . we  have

a responsibility to take all necessary action to prevent such problems,"Abraham said on 23 July.

     The shut-down isn't quite as dramatic (惊人的) as it sounds,expert say. Only two labs will be

seriously affected;Sandia National  Laboratory  in  Albuquerque, New  Mexico , and Lawrence

Livemore National Laboratory in Califomia. Together with Los Alamos,these two labs conduct the most

part of the country's nuclear weapon programmes. At Livermore, 876 employees will be suspended

during the storage of some 12,000 items of classified removable material.

      At other labs , far fewer people will  be affected. " The impact (影响) should be the smallest , "

says  Martha  Krebs , former director of the energy department's science office.

1. Why was the storage of classified research at all 24 labs shut down?

A. Because the security problems might be present elsewhere .

B. Because the security problems existed elsewhere.

C. Because two missing computer disks had still not be found.

D. Because officials decided to stop doing such research.

2. How many labs conduct the country's nuclear weapon programmes according to the text?

A. About 24.                  

B. Only 2.

C. More than 2.              

D. Over 15.

3. The underlined word "suspended" in the second paragraph probably means" _________". 

A. hung from above

B. stopped from holding a position

C. doubted

D. fired

4. It can be inferred from the text that________.  

A. the computer disks must have been stolen by terrorists

B. the people living in the United States have little security

C. the United States is a country whose security is very bad

D. the missing of the computer disks caused great fear among Americans

老张出差去成都，完成工作之后报名参加了1成都某旅行社组织的“乐山——峨眉山二日游”，双方约定了行程，其中包括了“峨眉山观日出”并签订了旅游合同。游览峨眉山那天，导游员要求旅游团早上4点起床集合，然后乘车去峨眉山观日出。但是，旅游车出发之后没有直接到景点，而是转了一大圈，接了几拨的旅游团队之外的其他旅游者，直到7点30分才到达峨眉山停车场，峨眉山观日出成了泡影。旅游者认为，旅游行程中包含了峨眉山观日出，旅行社就应该按观日出时间安排客人上山去观日出，既然没有安排观赏，旅行社就该赔偿损失。旅行社则辨称，游客游峨眉山那天是阴天，根本不可能实现峨眉山观日出，能否可以观日出，受天气限制，这是不可抗拒的，因此拒绝赔偿。请问：

(2)旅行社能不能免除责任旅行社应当赔偿旅游者哪些违约金

电力系统高于或低于额定电压运行时，对不同类型的负荷有什么影响？