According to the passage, which of the following is NOT true？
A. You can"t get the DVD extras online because you pay less than rent a DVD.
B. You have to finish the DVD within one day when renting it online.
C. Some classical movies are still unavailable even after they are finished in the theatres.
D. New movies can be seen only some time after their release.
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Which of the following would be the best title for the passage？
A. History of Methane Researches
B. Variety of Methane Sources
C. Plant Producing Methane
D. Microbe Producing Methane
掘进中的岩巷允许风速最高为()m/s。
A. 4
B. 5
C. 6
D. 8
In which way are students at University of Nevada School of Medicine better prepared？
A. They have access to National Resident Matching Program.
B. They know what their specialties and strengths are.
C. The school has gathered their full profiles.
D. The school provides them with useful suggestions.
According to the first paragraph, what happened to the waters off southern Greenland and Iceland in the last 30 years？
A. The waters are salty.
B. The waters are not very salty.
C. The salinity is decreasing.
D. The sea water is becoming less and less.
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