阳明头痛,可选用的引经药是()
A.羌活、蔓荆子
B.羌活、川芎
C.葛根、白芷
D.柴胡、川芎
E.吴茱萸、藁本
参考答案:C
氢原子的3d和4s能级的能量高低正确的为()。
A.3d>4s
B.3d=4s
C.3d<4s
D.无法比较
翻译句子。
1. Who is your father talking to?
_______________________________
2. Thanks for helping me with my English.
3. Here is a photo of my family.