杆形二价的
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The results indicated that both the number of rod bivalents and the number of pre-division bivalents increased markedly after radiation, while the number of bivalent chiasma tended to decrease.
结果表明,照射后棒状二价体数明显上升,二价体提前分离增多,而二价体的交叉数却呈下降趋势。
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Rod Curtis at the World Health Organization in Geneva says the new bivalent vaccine solves this problem.
VOA: special.2010.01.18
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