单项选择题


Questions 27 and 28 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
Now listen to the news.
Over the last five decades, life expectancy has increased globally by______ years.

A．19
B．45
C．65
D．5
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单项选择题
What efforts are needed here
A．To train more sharp-eyed workers.
B．To provide more languages.
C．To clean up differences between languages.
D．To create more domain names.
单项选择题
Suppose Jack’ s father is a heavy smoker, so was Mary’s mother. According to the speaker, what will happen
A．Jack is more likely to develop lung cancer.
B．Mary is more likely to develop lung cancer.
C．Jack and Mary have the same chance to develop lung cancer.
D．Neither Jack nor Mary has the chance to develop lung cancer.
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