单词：spermatin
present in semen, to which it is said to impart the mucilaginous
character.
单词：spermatin 相关文章
[00:00.00]Albert Einstein communist Alexander Bell professor [00:05.00]艾伯特爱因斯坦 n.adj.共产主义者(的)亚历山大贝尔 n.教授 [00:10.00]ruler scientific darkness shy [00:14.79]n.统治者 adj.科学的 n.黑暗 adj.害羞的 [00:
高中英语词汇
RACHEL MARTIN, HOST: A wide-ranging study shows that sperm counts are plummeting throughout the Western world, and scientists don't know why. NPR health correspondent Rob Stein suggests some of the potential reasons. ROB STEIN, BYLINE: In Margaret At
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高中英语人教版高二
Beijing, Sept. 6 (Xinhua) -- A sperm donation scandal disclosed recently has aroused growing concern in the United States. According to the New York Times' report, Ryan Kramer, the son of a donor, found that he has more than 150 half-siblings - they
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WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
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First: According to magnitude I divide the whales into three primary BOOKS (subdivisible into CHAPTERS), and these shall comprehend them all, both small and large. 第一 我按照大小,把鲸分为主要的三篇(各篇再分为章),这就把它们不
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