问题 阅读理解

阅读理解。

     By Zhang Youlv (China Daily 09/29/2008)-A manned lunar (月球的) landing is China's next target when the

current three-stage space program ends in the next dacade."When our manned space program is completed,

we will travel even further," Wang Zhaoyao, deputy head of China's manned space program office and

Shenzhou VII mission spokesman, told a briefing in Beijing three hours after China's third manned space

mission was successfully concluded yesterday.

     "After comprehensively analyzing the general trend of the international development of manned space, as

well as realities in China, we see a manned lunar landing as a both challenging and tactical (策略的) field in

global hi-tech," he said.

     "We believe it necessary for our country to do something in this field," Wang said.

     He did not give a specific(具体的) date for a moon landing. Wang, however, said,"Experts believe this is

'very much needed' for research into relevant (closely connected) technologies to further China's achievements

in space."

      The 68-hour Shenzhou VII mission featured a 25-minute spacewalk on Saturday.

      It was broadcast live and watched by millions throughout the country. The crew's landing at a site in the

Inner Mongolia autonomous region was also carried live by national television.

     The entire mission was pronounced a complete success.

     Wang said the three astronauts, were transported to Hohhot, the region's capital, and would spend the

evening there.

     "They will return to Beijing this morning," he said.

     "During the course of the mission, Russian experts provided strong technical support for the EVA

spacesuits. The successful Sino-Russian cooperation for this flight created beneficial conditions for more

intensive cooperation between the two sides in the future," Wang said.

     The mission's success has paved the way for completing the second stage of the program-building a space

station before 2020.

      Before that, a space lab will be set up in 2010 with Shenzhou X, the country's next full-crew space journey.

1. When will China's spaceship land on the moon?

A. 2020.

B. 2010.

C. 2018.

D. No specific date.

2. What does the underlined sentence in the fourth paragraph imply?

A. We will travel even further in the outer space.

B. There is a need for China to land on the moon.

C. It is very much needed to research space technologies to further China's space program.

D. International cooperation is necessary for China's landing on the moon.

3. The reason why Russian experts provided strong technical support for the EVA spacesuits is that _____.

A. China can't make spacesuit

B. China and Russia would like to cooperate in space program

C. China is a leading technological power now

D. Russia wants to benefit from China

4. What would be the best title for this passage?

A. A Manned Lunar Landing is Both Challenging and Tactical

B. Shenzhou X will Land on the Moon

C. China will Set up a Space Lab on the Moon

D. Landing on the Moon--the Next Target

答案

1-4: DBBD

问答题

[背景材料]
某高层办公楼,总建筑面积137500m2,地下3层,地上25层。业主与施工总承包单位签订了施工总承包合同,并委托了工程监理单位。
施工总承包单位完成桩基工程后,将深基坑支护工程的设计委托给了专业设计单位,并自行决定将基坑支护和土方开挖工程分包给了一家专业分包单位施工。专业设计单位根据业主提供的勘察报告完成了基坑支护设计后,立即将设计文件直接给了专业分包单位。专业分包单位在收到设计文件后编制了基坑支护工程和降水工程专项施工组织方案,方案经施工总承包单位项目经理签字后即由专业分包单位组织了施工,专业分包单位在开工前进行了三级安全教育。
专业分包单位在施工过程中,由负责质量管理工作的施工人员兼任现场安全生产监督工作,土方开挖到接近基坑设计标高(自然地坪下8.5m)时,总监理工程师发现基坑四周地表出现裂缝即向施工总承包单位发出书面通知,要求停止施工并要求立即撤离现场,施工人员查明原因后再恢复施工。但总承包单位认为地表裂缝属正常现象,没有予以理睬,不久基坑发生了严重坍塌,并造成4名施工人员被掩埋,经抢救3人死亡、1人重伤。事故发生后,专业分包单位立即向有关安全生产监督管理部门上报了事故情况。经事故调查组调查,造成坍塌事故的主要原因,是由于地质勘察资料中未表明地下存在古河道,基坑支护设计中未能考虑这一因素而造成的。事故造成直接经济损失80万元,于是专业分包单位要求设计单位赔偿事故损失80万元。
[问题]

三级安全教育是指哪三级

多项选择题