水牛角粉碎用（）
A．加液研磨
B．混合粉碎
C．“蒸罐”
D．“串油”
E．锉削
参考答案：E
解析：
水牛角为贵重细料药，粉碎可用锉削或单独粉碎。选E。
Beethoven was a great German _______.
A writer B artist C composer D poet
