A lot of ketchen waste......(can / compost) and used in the garden.
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Cans......(should / take) to a metal bank.
Some plastics......(cannot / recycle).
Only 3% of national waste......(produce) in the home in 1997.
实践的主体是(),对象是( ),性质是( )。
A. 人、主观世界、物质活动;
B. 动物、客观世界、精神活动;
C. 人和动物、主观世界、精神活动;
D. 人、客观世界、物质活动;