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In nineteenth century Puerto Rico, the consumption of salted cod spread among the entire population; on the tables of humbler families it became ____________ food, adding flavor to other products and supplying much-needed protein.
- A.an exotic
- B.an affordable
- C.an essential
- D.a supplemental
- E.a complementary
- F.a commonplace
D,E显示答案
以上解析由 考满分老师提供。
