下载APP
【单选题】
存在于细胞内是重要的抗氧化剂，并能抑制亚硝酸胺在体内形成的是（）
A.
维生素A
B.
维生素D
C.
维生素E
D.
维生素C
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】If those "mad moments"— when you can’t recall what your friend has told you or where you left your keys—are becoming more frequent, mental exercises and a healthy brain diet may help. Just as bodies r...
A.
everyone can be forgetful sometimes regardless of one’s age
B.
we can prevent our sound mind from aging with certain methods
C.
brain aging starts from the time when we are in our 20s and 30s
D.
memory loss is a sign that shows we are getting old
