药材金银花的抗菌成分是()
A.木犀草素
B.芦丁
C.肌醇
D.绿原酸
E.山奈素
参考答案:D
阿奎那认为,上帝用以统治人类的法律是()
A.永恒法
B.自然法
C.神法
D.人法
The earliest form of artificial lighting was fire, which also provided warm and protection.
A.hot
B.sunshine
C.warmth
D.safe