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
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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.
What can we learn from the last two paragraphs？
A. Giving money and things to your children will ruin their lives.
B. Passing on an early inheritance can help offspring make good use of the money.
C. Giving one"s money can ensure his descends receive a better education.
Donors have no right to change the beneficiary once designated in the college savings plan.
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