下载APP
【单选题】
茶叶中的 ( )是一种良好的天然抗氧化剂，且抗氧化能力比维生素C、E都强。
A.
维生素B
B.
咖啡碱
C.
茶多糖
D.
茶多酚
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