130. Please ensure that all confidential documents are shredded _______ placing them in the recycling bin.
(A) upon
(B) while
(C) formerly
(D) before

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統計： A(2), B(11), C(4), D(66), E(0) #3804688

詳解 (共 1 筆)

#7280851
請確保所有機密文件在放入回收桶之前都已被...
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