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题目内容双击单词支持查询和收藏哦～
Studies of hermaphroditic plants may exhibit sampling bias against self-fertilizing and cross-fertilizing species, thus inflating the frequency of species using a mixed mating system (both self-fertilizing and cross-fertilizing); nevertheless the number of mixed-system species is not _____.
- A.self-evident
- B.static
- C.trivial
- D.relevant
- E.calculable
C显示答案
以上解析由 考满分老师提供。
