明矾煅制的主要目的( )
A.除去结晶水B.使质地酥脆,增强补肾纳气C.产生药效D.改变化学成分,增强散瘀止痛E.降低毒性
参考答案:A
解析:[知识点] 明煅法
Susan decided not to work on the program at home because she didn’t want her parents to know what she .
A.has done
B.had done
C.was doing
D.is doing
秦始皇灭了六国,但并未统一中国,当中就有卫国未灭,后来在秦二世手上才寿终正寝。请问这个小国在秦的前一任附庸的是哪个国家?