功能清热泻火，用于胃热牙龈肿痛的药物是( )
A．夏枯草
B．石膏
C．淡竹叶
D．栀子
E．黄芩
参考答案：B
I’m sure that if you make good use of your ____ time, your English will be improved in a short time.
[ ]
A. extra
B. common
C. special
D. spare
中国古代烹饪技术的发展大体可分为哪几个阶段？
