单项选择题 Questions 14 to 16 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.

Radiation

A.is good for crops.
B.can poison food and water.
C.is harmful to man.
D.is useful to man.


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3.单项选择题 Questions 23 and 24 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.

According to the news item, many Canadians gathered in Montreal

A.to give support to Quebec’s independence effort.
B.to drive the French-speaking people away.
C.to uphold the country’s unity.
D.to provoke greater surge of campaigning in Quebec.