依据《电力设备典型消防规程》的规定，粉尘浓度较大、积粉较多的场所发生着火时，宜采用雾状水灭火。
参考答案：对
— You must get excited about going to France to study oil painting.
— ________, but I'm afraid I can't do well because my French is too poor.[ ]
A. I don't know yet
B. Certainly not
C. Well, I ought to have
D. All right
受热时表皮裂纹或崩口，受潮则变黑并发白斑的是（）
A.鹿茸
B.麝香
C.牛黄
D.哈士蟆油
E.熊胆
