单词:spermiology
单词:spermiology 相关文章
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Conscious planning for the future was thought to be a cognitive behavior unique to humans. Not anymore. Researchers in Sweden have found a zoo chimp th
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
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
后缀在缀合法中只起改变词性的作用,不改变词根的含意,这在第一章内已叙述。现将常用后缀分一般英语后缀及医学英语后缀两部分来说明。因词性不同、后缀可分为名词性、形容词等。 一、名词性后缀 1、-age为抽象名词后缀,表示行为,状态和全体总称,percentage百分数,
英语单词和汉字一样,存在着很多的偏旁部首字根,知道了字根你就可以根据它们直接来猜测单词的意思,虽不说百分之百猜准,但起码可以猜测个大概,至少在别人告诉过你单词的意思后你