单项选择题

A．Because nearly 1,000 million acres of land was burned off.
B．Because natural resources are being used up.
C．Because animals and plants are in danger of extinction.
D．Because natural beauty of the land would be ruined.
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单项选择题
A．The size of the country.B．Large areas of virgin forest.C．The rich natural resources of the land.D．Wild animals and plants.
A．The size of the country.
B．Large areas of virgin forest.
C．The rich natural resources of the land.
D．Wild animals and plants.
单项选择题
A．Their competitors have long been advertising on TV.B．TV commercials are less expensive.C．Advertising in newspapers alone is not sufficient.D．TV commercials attract more investments.
A．Their competitors have long been advertising on TV.
B．TV commercials are less expensive.
C．Advertising in newspapers alone is not sufficient.
D．TV commercials attract more investments.
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