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题目内容双击单词支持查询和收藏哦～
The historical study of pregnancy and childbearing began fairly recently and has been hindered by the relative _____________ of records concerning these particular experiences.
- A.pertinence
- B.dearth
- C.paucity
- D.ambiguity
- E.expediency
- F.applicability
B,C显示答案
以上解析由 考满分老师提供。
