单项选择题

A．Cancer.
B．Heart disease.
C．Organ transplant.
D．Lung disease.
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单项选择题
A．He says that he’s got a basketball match ticket.B．He says that he’s got to see some friends.C．He says that he has to see his parents.D．He says that the ticket is expensive.
A．He says that he’s got a basketball match ticket.
B．He says that he’s got to see some friends.
C．He says that he has to see his parents.
D．He says that the ticket is expensive.
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.
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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