阿摩線上測驗
32. Recycled paper, if_____, looks yellowish.
(A) not bleaching
(B) it is bleached
(C) not bleached
(D) it is not bleaching
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統計： A(25), B(54), C(137), D(33), E(0) #2062334
統計： A(25), B(54), C(137), D(33), E(0) #2062334
