乳香的粉碎可用
A．串油
B．水飞
C．蒸罐
D．低温粉碎
E．加液研磨
参考答案：D
解析：乳香、没药等树脂、树胶类药物可用低温粉碎或者单独粉碎，选D。
The Internet is a wonderful discovery, ___of great significance to people’s lives.
A．as is I think.
B．which think it is
C．which I think is
D．as I think
