单项选择题

A．Pollution of the environment.
B．A new generation of pest killers.
C．Over-killing by hunters.
D．Destruction of their natural homes.
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单项选择题
A．They should put the meeting to an end.B．They should hold another meeting to discuss the matter.C．She would like to discuss another item.D．She wants to discuss the issue again later.
A．They should put the meeting to an end.
B．They should hold another meeting to discuss the matter.
C．She would like to discuss another item.
D．She wants to discuss the issue again later.
单项选择题
A．There are 200 vehicles for every kilometer of roadway.B．It has a dense population.C．There are many museums and palaces.D．It has many towering buildings.
A．There are 200 vehicles for every kilometer of roadway.
B．It has a dense population.
C．There are many museums and palaces.
D．It has many towering buildings.
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