醋酸发酵中醋酸菌利用何种原料进行发酵的（）。
A、乙醇
B、乙酸乙酯
C、葡萄糖
参考答案：A
用所给词的适当形式填空
1. Good watches must have good _____(quality).
2. Don't you think the sofa is very _____(comfort) ?
3. How many _____(province) are there in China?
4. Who runs _____(fast) in this class?
5. I speak English _____(badly) than he does.
使用消火栓时，应对准火焰什么部位灭火（）
A.火焰顶部
B.火焰中部
C.火焰根部
D.以上都可以
