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A. He thinks it is extremely nice.
B. He thought the car was less expensive.
C. He would like to take it for a test ride.
D. He can"t afford it.

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经济发展就是指一个国家人均国民生产总值的增长。()
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材料题请点击右侧查看材料问题 查看材料

Ask the woman in advance.
B. Write a message to Dr. Tedder.
C. Ask Dr. Tedder for permission.
D. Go to Dr. Tedder"s listening class.

蓝藻的原始性主要表现在:_______、_______、_______和_______。

简述衣藻的形态结构、繁殖及生活史特点。

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