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> 中国大学MOOC答案 > To clean the water bottle which has been used for a long time, white vinegar can be used to remove ______ from the inner surface of the bottle.

To clean the water bottle which has been used for a long time, white vinegar can be used to remove ______ from the inner surface of the bottle.

中国大学MOOC答案 数据帝 2024-04-13 扫描二维码

A、

rubbish

B、

scale

C、

dust

D、mud
喵查答案：

scale

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