冶炼电解液循环一般为（）l/min。
A、10-15
B、25-30
C、35-40
D、40-45
参考答案：B
We don’t permit _____in the classroom; that is to say, students aren’t permitted _____in the classroom.[ ]
A. to smoke; to smoke
B. smoking; smoking
C. smoking; to smoke
D. to smoke; smoking
治疗脐风的主方是：（）
A.小儿回春丹
B.撮风散
C.远志丸
D.玉真散
E.羚角钩藤汤
