单项选择题

Passage Two

A. Fruit, water and insects.
B. Plants and water.
C. High plants and food.
D. Plants and food.
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单项选择题
A. It is lessening. B. It is growing. C. It hasn’t changed. D. It is slowly changing.
A. It is lessening. B. It is growing.
C. It hasn’t changed. D. It is slowly changing.
填空题
atmosphere
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