单项选择题

A．When it is breeding.
B．When it feels threatened by humans in its territory.
C．When its offspring is threatened.
D．When it is suffering from illness.
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单项选择题
A．It is well known an over the world.B．It has become the topic of an article.C．It has made the front-page headline of the press.D．It has become the title of a best-seller.
A．It is well known an over the world.
B．It has become the topic of an article.
C．It has made the front-page headline of the press.
D．It has become the title of a best-seller.
单项选择题
A．The most dangerous earthquakes will take place.B．Fires, floods and landslides will take place.C．The ground will open and swallow great numbers of people.D．Mountains will landslide and kill the rest of our lives.
A．The most dangerous earthquakes will take place.
B．Fires, floods and landslides will take place.
C．The ground will open and swallow great numbers of people.
D．Mountains will landslide and kill the rest of our lives.
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