大全987-226

226.Cooperative apartment houses have the peculiar distinction of being dwellings that must also operate as businesses.
(A) of being dwellings that must also operate as businesses
(B) of dwellings that must also operate like business
(C) that they are dwellings that must operate like business
(D) that, as dwellings, they must also operate like businesses
(E) to be a dwelling that must also operate as a business

of being dwellings 怎么理解？~

这题应该就是选A吧。

建议MM在发贴前先查下字典/语法书/OG，词性、词的用法等可以查字典，句子结构可以查语法书，相似的用法可以查OG，诸如此类吧。（这样求得答案节省时间而且更有说服力）

of being dwellings不需要特别理解，这是distinction的特殊用法，distinction of being，查字典可得。

er..er~~~懒查字典~~~坏习惯