单项选择题

A．To show interest to ecology.
B．To criticize people for ignoring others interests.
C．To make people aware that they are destroying their own living surroundings.
D．To attract more people to study ecology so that they can discuss it more often.
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单项选择题
A．When Perrault published his first book in 1679, no story of the book had been known to people.B．When Perrault published his first book in 1679, stories of the book were already well known.C．When Perrault published his first book in 1679, few people were interested in the stories of the book.D．When Perrault published his first book in 1679, all of the stories had been popular with everyone.
A．When Perrault published his first book in 1679, no story of the book had been known to people.
B．When Perrault published his first book in 1679, stories of the book were already well known.
C．When Perrault published his first book in 1679, few people were interested in the stories of the book.
D．When Perrault published his first book in 1679, all of the stories had been popular with everyone.
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