Many companies don’t realize ____ important the customers are, which is why they lose their customer...
2022-08-06 23:23:16 81次 天津市、宝坻一中、杨村一中等）2019-2020学年高三上学期期中联考英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Many companies don’t realize ____ important the customers are, which is why they lose their customers unconsciously.
A.what B.whether C.how D.which
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