being known和known在作状语时有什么区别？

如 Linda worked for the Minnesota Manufacturing and Mining Company, ___ as 3M.？是k填nown 还是being known？

有区别。首先，你这个问题应该选 known
这个状语从句完整的说法是 .....,which is known as 3M. 是一个状语从句，一般可以把which is 省去，也就是你题目中的句型

应该是known，一般状态下的“被认为” 而being known指的是正在“被认为” 再看看别人怎么说的。