单项选择题

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
According to the passage, what will probably happen to the endangered species

A．They will gradually die out.
B．They will be able to survive in the preserves.
C．They will have to migrate to find new homes.
D．They will face extinction without artificial reproduction.

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单项选择题

The student found out how to design an atomic bomb ______.

A．during his studies at Massachusetts Institute of Technology.
B．from information available on TV programmes.
C．from information he found in science libraries.
D．at a hardware store.

单项选择题

What does the man warn the woman NOT to do

A．Not to teach him how to play.
B．Not to get her studying done.
C．Not to play too much.
D．Not to form a habit.

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. According to the passage, what will probably happen to the endangered species 您的浏览器不支持 audio 元素。

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.
According to the passage, what will probably happen to the endangered species