题目内容
（请给出正确答案）
Heidelberg University does not offer courses in______.
A．arts and sciences
B．arts and medicine
C．engineering and agriculture
D．sciences and medicine
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更多“Heidelberg University does not…”相关的问题
Where is Barker's Books currently located？
A．In the new shopping center
B．Near the university
C．Next to the shoe store
D．Near the train station
Which university is the oldest one in the U.K.？
A.London University
B.Edinburgh University
C.Cambridge University
D.Oxford University
One of the organizers for this survey is MTVU, which is ______.
A．a TV station
B．a university
C．a radio station
D．a television network
Which of the following is true according to the text？
A．The Harts prefer a public university to a private one.
B．It is much easier to pay the tuition at present.
C．All students can get the aid package.
D．Traditional scholarships are still attractive to some families.
John J. Odlund's "Debate Rages Over Who Owns the Law" was published by
A．Chicago: University of Chicago Press, 1990.
B．The Minneapolis Star Tribune.
C．The now-defunct Internet Legal Practice Newsletter.
D．The Atlantic, October 1995.
Schools and colleges encouraged to go green
Green action plans for schools, colleges and universities will encourage them to care for the environment.
According to the context of the passage, it implies that______.
A．the college and university, can be described as a variety of institutions
B．a college may form. one major division of a university
C．colleges may also be independent of a university
D．universities generally consist of various colleges and professional schools
E
Email Announcement Weekly
University libraries to be closed for day on Friday
All university libraries will be closed from 8 a. m. to l p. m. on Friday (Aug. 10). The clo-sure will allow librarians to complete various tasks to prepare for the coming fall term. Library usersare asked to change their study or research plans around this short closure.
Bring your old films to Home Movie Day
Find your old home movies and bring them to Home Movie Day from l-5 p. m. Saturday (Aug. ll). The free event at WILL ' s Campbell Hall, 300 N. Goodwin, includes a clinic on ca- ring for old films and continuous showing of movies brought in by students like you.
Sponsors(主办者) are WILL and the U of C Library.
Ireland garden tour set for June 2008
The public is invited to join Illinois Master Gardeners on a trip to visit popular public gardens and castles in Ireland. The tour (June 2-12 , 2008) also includes several personal gardens as well as free time to find more. Bookings due Sept. 15. For trip introduction and booking information, please visit http ://www. travels. uiui. edu/mg/.
72. To whom is the first email announcement probably sent？
[ A] International tourists.
[ B] University people.
[ C] The general public.
[ D] Movie lovers.
Plant Gas
Scientists have been studying natural sources of methane for decades but hadn't regarded plants as a producer, notes Frank Keppler, a geochemist at the Max Planck Institute for Nuclear Physics in Heidelberg, Germany. Now Keppler and his colleagues find that plants, from grasses to trees, may also be sources of the greenhouse gas. This is really surprising, because most scientists assumed that methane production requires an oxygen-free environment.
Previously, researchers had thought that it was impossible for plants to make significant mounts of the gas. They had assumed that microbes need to be in environments without oxygen to produce methane. Methane is a greenhouse gas, like carbon dioxide. Gases such as methane and carbon dioxide trap heat in Earth's atmosphere and contribute to global warming.
In its experiments, Keppler's team used sealed chambers that contained the same concentration of oxygen that Earth's atmosphere has. They measured the amounts of methane that were released by both living plants and dried plant material, such as fallen leaves.
With the dried plants, the researchers took measurement at temperatures ranging from 30 degrees Celsius to 70 degrees C. At 30 degrees C, they found, a gram of dried plant material released up to 3 nanograms of methane per hour. (One nanogram is a billionth of a gram. ) With every 10-degree rise in temperature, the amount of methane released each hour roughly doubled.
Living plants growing at their normal temperatures released as much as 370 nanograms of methane per gram of plant tissue per hour. Methane emissions tripled when living and dead plant was exposed to sunlight.
Because there was plenty of oxygen available, it's unlikely that the types of bacteria that normally make methane were involved. Experiments on plants that were grown in water rather than soil also resulted in methane emissions. That's another strong sign that the gas came from the plants and not soil microbes.
The new finding is an "interesting observation," says Jennifer Y. King, a biogeochemist at the University of Minnesota in St. Paul. Because some types of soil microbes consume methane, they may prevent plant-produced methane from reaching the atmosphere. Field tests will be needed to assess the plant's influence, she notes.
What was scientists' understanding of methane？
A．It was produced from plants.
B．It was not a greenhouse gas.
C．It was produced in oxygen-free environments.
D．It traps more heat than any other greenhouse gas.
Plant Gas
Scientists have been studying natural sources of methane (甲烷，沼气) for decades but hadn't regarded plants as a producer, notes Frank Keppler, a geochemist(地球化学家) at the Max Planek Institute for Nuclear Physics in Heidelberg, Germany. Now Keppler and his colleagues find that plants, from grasses to trees, may also be sources of the greenhouse gas. This is really surprising, because most scientists assumed that methane production requires an oxygen-free environment.
Previously, researchers had thought that it was impossible for plants to make significant amounts of the gas. They had assumed that microbes(微生物) need to be in environments without oxygen to produce methane. Methane is a greenhouse gas, like carbon dioxide. Gases such as methane and carbon dioxide trap heat in Earth's atmosphere and contribute to global warming.
In its experiments, Keppler's team used sealed chambers (室，房间；腔) that contained the same concentration of oxygen that Earth's atmosphere has. They measured the amounts of methane that were released by both living plants and dried plant material, such as fallen leaves.
With the dried plants, the researchers took measurement at temperatures ranging from 30 degrees Celsius to 70 degrees C..At 30 degrees C., they found, a gram of dried plant material released up to 3 nanograms(微克) of methane per hour (One nanogram is a billionth of a gram. ). With every 10-degree rise in temperature, the amount of methane released each hour roughly doubled.
Living plants growing at their normal temperatures released as much as 370 nanograms of methane per gram of plant tissue per hour. Methane emissions tripled (增加三倍) when living and dead plant was exposed to sunlight.
Because there was plenty of oxygen available, it's unlikely that the types of bacteria(bacterium 的复数，细菌) that normally make methane were involved. Experiments on plants that were grown in water rather than soil also resulted in methane emissions. That's another strong sign that the gas came from the plants and not soil microbes.
The new finding is an "interesting observation," says Jennifer Y.King, a biogeochemist(生物地球化学家) at the University of Minnesota in St. Paul. Because some types of soil microbes consume methane, they may prevent plant-produced methane from reaching the atmosphere. Field tests will be needed to assess the plant's influence, she notes.
What was scientists' understanding of methane？
A．It was produced from plants.
B．It was not a greenhouse gas.
C．It was produced in oxygen-free environments.
D．It traps more heat than any other greenhouse gas.
