問題詳情
19.A high proportion of the material generated in many commercial establishments is _______. We can learn from recycling professionals and the establishments themselves how to capture these materials and turn them into _______ compost products.
(A) wasteful; improper
(B) wasted; dependent
(C) compressed; selling
(D) compostable; value-added
參考答案
答案：D
難度：簡單0.74
統計：A(9),B(18),C(9),D(222),E(0)
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