单选题 The Quality Control staff is responsible ______ the quality of the products that come out of the factory.

【正确答案】 A

【答案解析】[解析] 本题考查形容词词组的搭配。Be responsible for为固定搭配，表示“对……负责”之意，故正确答案为选项A。be responsible to sb...表示“向(某人)负责”之意，故D项不对。其他选项不与：responsible搭配。