题目内容
（请给出正确答案）
What are the ideal conditions for creating clouds？
A．The temperature is as low as minus 235 degrees Fahrenheit.
B．The air is a million times drier than that of Sahara.
C．Extremely dry air and low enough temperature.
D．A mild climate and the build-up of carbon dioxide.
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更多“What are the ideal conditions …”相关的问题
第1题
What does the word "culprit"(Line 2, Paragraph 1)probably mean ?
A．consequence
B．sinner
C．impact
D．cultivation
第2题
From the first paragraph, we learn that
A．night-shining clouds have become more shining but the formation becomes less frequent.
B．scientists believed that climate change contributes to the formation of night-shining clouds.
C．night-shining clouds become widespread and have started to form. at lower latitudes.
D．the formation of night-shining clouds is ten times more frequent than previously believed.
第3题
ntrol?
A．Football clubs must implement the team salary caps.
B．Football clubs should have its characteristic way of controlling costs.
C．Football clubs should not be commercially-oriented.
D．Some football clubs could learn from the select band of clubs.
第4题
From the fourth paragraph, we can infer that
A．owners of football clubs are highly talented businessmen.
B．football clubs" owners enjoy more privileges in the marketplace.
C．the financial authorities have no right to regulate football clubs.
D．football fans can protect football clubs against the bank"s accusation.
第5题
The TV magnates are competing with each other for the right to
A．attach themselves to an elite football club.
B．show advertisements made with superstars.
C．show live football matches of Premier League.
D．sponsor the football matches because of their potential.
第6题
The word "uptick"(Line 1, Paragraph 3)probably means
A．scale.
B．rise.
C．reputation.
D．benefit.
第7题
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.
第8题
The authors purpose of writing this passage is to
A．alert the public and the environmental groups about the freight traffic.
B．show the European Commission to the consequence of the blind expansion.
C．elaborate the freight traffic problems and their causes in Europe.
D．appeal to the governments to invest more money in freight traffic.
第9题
Denis Doute thinks that
A．European governments have much difficulty in improving the railway system.
B．freight trains in the United States often travel on separate tracks.
C．the French government puts too little emphasis on the freight traffic.
D．the surplus passenger trains should be changed into freight trains.
第10题
The word "phantom"(Line 2, Paragraph 4)probably means
A．trouble.
B．ghost.
C．hero.
D．turtle.
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