单项选择题

Questions 8 to 10 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each question. Now listen to the news. What is the problem with Russia’s space station

A．It has lost its primary oxygen sources.
B．It has lost its backup oxygen sources.
C．It has lost both the primary and the backup oxygen sources.
D．It has lost neither the primary or the backup oxygen sources.
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单项选择题
According to the interview, how many people have been added to the Earth’s population in the past century
A．More than two billion.
B．More than three billion.
C．More than four billion.
D．More than six billion.
单项选择题
Which of the following is the most significant American poem of the 20th century by T. S. Eliot
A．The Sacred Wood.
B．Four Quartets.
C．The Waste Land.
D．Preludes.
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