第22题:[单选题]A new system of quality control was brought in to overcome the defects in the firm's products. A.invested B.introduced C.installed D.insisted 参考答案:B 句意:质量控制新系统被引进以克服公司生产上的弊端。句中的“bring in”是“引进”的意思,四个选项中:invest意为“投入(资金,时间,精力等)” ; introduce意为“介绍”; install意为“安装”; insist(常与on , that连用)意为“主张、坚持、坚持要求”。