单项选择题

A．A chemistry assignment.
B．A study that their chemistry professor did.
C．A class that the woman is taking.
D．A job possibility.
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单项选择题
Since many of the older, bigger tusked animals have already been destroyed, what did the poacher do
A．They gave up poaching.
B．They killed more elephants to get the same quantity of ivory.
C．To them, game is over.
D．They realized it was illegal to slaughter elephants.
单项选择题
Why did the African nations welcome an ivory ban
A．The rate of killing has been accelerating.
B．The US government forbids imports of both raw and finished ivory.
C．They realized that the killing of elephants is a serious threat to their tourist business.
D．African people advocated an ivory ban.
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