单项选择题

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单项选择题
A. Fruit, water and insects. B. Plants and water.C. High plants and food. D. Plants and food.
A. Fruit, water and insects.
B. Plants and water.
C. High plants and food.
D. Plants and food.
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.
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