A new system of quality control was ______to overcome the defects in the firm’s products.

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问题 A new system of quality control was ______to overcome the defects in the firm’s products.

选项 A、installed
B、inserted
C、introduced
D、admitted

答案C

解析 introduce vt.引进,传入,采用;介绍,使了解。(如:Coffee was introduced into England from the continent.introduce new techniques in industrial production;introduce sb.to sb.else.)。instal(l)vt.安装,装置。insert(into)vt.捅入,嵌入。admit vt.承认,供认;准许进入,准许加入。
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