109. Allowing unused food to spoil in empty kitchens is _____ resources and contributes to environmental degradation.
(A)a waste of
(B)a collection of
(C)a quantity of
(D) a pile of

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統計: A(287), B(15), C(22), D(13), E(0) #3083075

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109. Allowing unuse...
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#6158295
a pile of-objects positioned one on top of another-堆、疊
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