单项选择题

A．About 200 miles.
B．About 1,000 miles.
C．About 7,000 miles.
D．About 5,000 miles.
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Eating too much salt can raise your cholesterol.
A．Y
B．N
C．NG
单项选择题
A．The nettle is widely used in the twine industry today.B．The nettle’’s stinging hairs are a protective device.C．American Indians found many uses for the nettle.D．The slender nettle is found over a wide area of China.
A．The nettle is widely used in the twine industry today.
B．The nettle’’s stinging hairs are a protective device.
C．American Indians found many uses for the nettle.
D．The slender nettle is found over a wide area of China.
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