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It was not an easy process. Voss was actually passed over when he first applied for the astronaut program in 1978. Over the next nine years he reapplied repeatedly, and was finally accepted in 1987. Since then he has participated in three space missions. The 50-year-old Army officer, who lives in Houston, is now in training for a four-month mission as a crew member on the International Space Station starting in July 2000.
Voss says the ASEE program is wonderful for all involved. "It brings in people from the academic world and gives NASA a special property for a particular period of time. It brings some fresh eyes and fresh ideas to NASA, and establishes a link with our colleges and universities," Voss explains. "There's an exchange of information and an exchange of perspectives that is very important."
For the academic side, Voss says, the ASEE program also "brings institutions of higher learning more insight into new technology. We give them an opportunity to work on real-world problems and take it back to the classroom".
Why was the hydraulic fuel pump seal important for the space shuttle？

A. Because previous seals all failed.
Because it was very complex in running the space program.
C. Because great care has to be taken of the hydraulic fuel pump sealing.
D. Because any crack in the seals would cause disastrous results for the astronauts.

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听力原文： The World Heritage Committee (WHC) overlooking conservation of global heritage sites will convene its annual meeting next week in Durban, South Africa, to review 42 proposed sites for inscription on the prestigious World Heritage List.
Extensions for nine sites that have already been inscribed will also be proposed during the 29th session of the WHC under the United Nations Educational, Scientific and Cultural Organization (UNESCO), according to the organization's official website.
The proposed sites include 28 cultural sites, 10 natural sites and 4 mixed sites presented by 44 countries, including Albania, China and the host country South Africa.
How many cultural sites have been proposed for inscription on the World Heritage List？

A. 42
B. 28
C. IO
D. 4

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个人/家庭风险管理分为风险控制和风险融资两类。风险控制是指针对可能诱发风险事故的各种风险因素,采取相应措施,在损前减少风险发生概率的预防措施和损后改变风险状况的减损措施,其核心是将消除和减少风险的成本分摊在一段时期内,以减少巨大损失的冲击,稳定财务支出和生活水平。()

A. 正确
B. 错误

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Which of the following statements is TRUE according to the passage？

A. 96 percent of the earth's surface is covered by ice.
B. Over 10 million square miles of the earth's surface are covered by ice now.
C. Almost all of the ice sheets coveting the land and glaciers in the mountains have been hidden.
D. Most of the ice on the earth's surface is located in Antarctic and Greenland for the time being.

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商业银行向客户提供财务规划、投资顾问、推介投资产品服务时,应调查了解客户的财务状况、投资经验、投资目的,以及对相关风险的认知和承受能力。()

A. 正确
B. 错误

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A. Because previous seals all failed. Because it was very complex in running the space program. C. Because great care has to be taken of the hydraulic fuel pump sealing. D. Because any crack in the seals would cause disastrous results for the astronauts.

Which of the following statements is TRUE according to the passage？

商业银行向客户提供财务规划、投资顾问、推介投资产品服务时,应调查了解客户的财务状况、投资经验、投资目的,以及对相关风险的认知和承受能力。()

A. Because previous seals all failed.
Because it was very complex in running the space program.
C. Because great care has to be taken of the hydraulic fuel pump sealing.
D. Because any crack in the seals would cause disastrous results for the astronauts.