以下哪种()不能提高资源效率 Which of the following() can't improve resource efficiency
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以下哪种()不能提高资源效率 Which of the following() can"t improve resource efficiency
A.提高物质循环率 Increasing of material recycling rate
B.降低物质排放率 Decreasing of emission rate
C.延长产品使用寿命 Extending product life span
D.提高年均增长率 Speeding up annual growth rate

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D
