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题目内容双击单词支持查询和收藏哦～
It may not seem like a big deal for produce distributors to mix together soybeans from different farms, but a growing number of buyers are willing to pay a premium for soybeans the _____ of which is know: they like to know exactly where their food came from.
- A.purity
- B.output
- C.heterogeneity
- D.origin
- E.yield
- F.provenance
D,F显示答案
以上解析由 考满分老师提供。
