What is this passage mainly about？
Acceleration of supernovae.
B. Expansion in the universe.
C. Exploration of galaxy.
D. Explosion of supernovae.
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What does the word "culprit"(Line 2, Paragraph 1)probably mean ？
A. consequence
B. sinner
C. impact
D. cultivation
在反恐工作中，重点目标的管理单位应当履行哪些职责？
"But they sure do play one on TV"(Line 7, Paragraph 2)implies
A. similar deals are on TV programs sometimes.
B. carbon credits are welcomed by some commentators.
C. the Catholic Encyclopedia is right.
D. the author agrees with some environmentalists to some degree.
According to the passage, the common problem of many football clubs is that
A. they neglected the most important thing—the football field.
B. the increase in expenditure has exceeded the increase in revenue.
C. they pay too much to lure superstars from other teams.
D. they are increasingly dependent on advertising.
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