亚洲国产中文精品久久艾草-av无码精品网站在线观看-国产成年无码AV片在线-又大又黄又爽视频一区二区

ppearance: yellow crystalline powder
Function: folic acid, also known as vitamin B9, is a wa-ter-soluble vitamin, which can promote the matura-tion of immature cells in bone marrow.Lack of folicacid in human can cause megaloblastic anemia andleukopenia, which is especially important for preg-nant women.