环境卫生学主要研究（）。 A.自然环境与人体健康的关系 B.生活环境与人体健康的关系

在用温度计测热水的温度时，若测量时温度计的玻璃泡接触容器底或容器壁，则测量值与实际值相比：

A．偏大

B．偏小

C．相等

D．无法确定

United States President George W. Bush is expected to issue a directive in the next few weeks. It will give the US Air Force a green light for the development of space weapons, US media reported last week.

This would potentially start a new global arms race, some experts have warned.

To keep that from happening, last Wednesday the White House explained that it was not considering putting weapons in space. It said it was making a shift in US space policy to allow for protection of satellites.

But some defense analysts and arms control advocates argue that the policy will pave the way for the US to put both defensive and offensive  weapons in space.

“No one should be fooled,” said Theresa Hitchens, an American weapons expert.

The US is now restricted by a 1996 directive  signed by President Bill Clinton. Plans for space weapons were vetoed by the Clinton cabinet. The directive emphasized the peaceful use of space , in agreement with almost unanimous global opinion.

The US military has placed importance on space and has sent up numberous satellites for troop communications and to provide intelligence and data to guide bombs to their targets.

The US Air Force wants to develop space- based weapons that could strike targets anywhere in the world within 90 minutes of receiving the order to open fire.

These new weapons under development cover a wide range. They include hunter- killer satellites and orbiting weapons. And they use lasers, radio waves, or even dense metal tubes, known as “ Rods from God”, dropped from space to do the damage.

There are many barriers to the setting up of this kind of program, experts say.

First is the coast. It is estimated that the budget may be US $220 billion to US $ 1 trillion .

The technical difficulties of developing reliable space weapons are also a problem.

And, the program will draw strong criticism from around the world. Experts worry about starting a space arms race.

小题1:Which of the following might be the best title for the passage?

A．US Military Plans

B．The Global Arms Race

C．A Comparison between Two Presidents

D．President George W. Bush and the World Peace小题2:According to this passage, which of the following is NOT true?

A．President George W. Bush supports space weapon development.

B．The space weapon program will threaten world peace

C．Clinton government was poorer than Bush government.

D．The US space weapon project is very expensive.小题3:After reading this passage, it can be inferred that “___________ “.

A．George W. Bush’s directive to be issued will be against global opinions

B．The White House is right in explaining that US new space policy aims to protect satellites

C．US government has little difficulty in developing new space weapons

D．President George W. Bush and Bill Clinton share a lot in common小题4:The author’s attitude towards the coming space weapon development is _______.

A．optimistic

B．critical

C．excited

D．indifferent

前厅部员工的必备素质和要求是什么？

公安机关权力的特殊强制性，是指公安机关权力以暴力为后盾，能够采取行政的、刑事的强制手段和措施，特别是对违法犯罪嫌疑人员，可以采取人身方面的强制措施，而公安机关权力的实施对象只能服从。( )

根据《政府采购评审专家管理办法》规定，评审专家应当具备的条件包括（）。

A、具有较高的业务素质和良好的职业道德，在政府采购的评审过程中能以客观公正、廉洁自律、遵纪守法为行为准则

B、熟悉政府采购、招标投标的相关政策法规和业务理论知识，能胜任政府采购评审工作

C、本人愿意以独立身份参加政府采购评审工作，并接受财政部门的监督管理

D、没有违纪违法等不良记录