单项选择题


Questions 11 to 14 are based on the passage you have just heard.
What is mainly talked about in this passage

A．The great human genome.
B．The discovery of genes.
C．Unlocking the genetic code.
D．Genes and scientists.
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How long is the library open on Saturdays
A．8 hours.
B．12 hours.
C．10 hours.
D．16 hours.
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Which of the following is voted as the best
A．Sohu.
B．Sina.
C．Baidu.
D．Yahoo.
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