試卷名稱:111年 - 111 國立中正大學_碩士班招生考試試題:英文#124729
年份:111年
科目:研究所、轉學考(插大)、學士後-英文
2. Having fewer employees on site translates to less daily cleaning and trash collection and spending on supplies like coffee filters, or pens, but they have been _______ by purchases like hand sanitizer and masks.
(A) switched
(C) exchanged
(B) implemented
(D) replaced