Warning: file_put_contents(): Only 0 of 4901 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 激情人妻久久综合,欧美乱人伦视频中文字幕
Bessman and colleagues then “knocked-out” the gene and, predictably, the bacteria made 10 times less folate than usual. 當(dāng)研究人員敲除細(xì)菌的這種基因后發(fā)現(xiàn)，其結(jié)果和預(yù)想的一樣，細(xì)菌制造的葉酸比正常情況少減少了10倍。