— What's this?
— ____________[ ]
A. It's yellow.
B. He is a boy.
C. It's a mouth.
答案:C
由于实邪结聚,阻滞经络,气血不能外达而出现的病机是()。
A.由实转虚
B.虚实夹杂
C.真虚假实
D.真实假虚
E.因虚致实
对于反应:2H2S+SO2="3S" +2H2O,被氧化的硫原子与被还原的硫原子的质量之比为( )
A.1:1
B.2:1
C.3:1
D.1:2