硫磺与雄黄的相同功效是（）
A.解毒杀虫
B.解毒凉血
C.解毒止痛
D.解毒通便
E.解毒清热
参考答案：A
The new dictionaries are very careful. They _____ well and _____ already. [ ]
A. sell, have been sold out
B. sold, had sold out
C. sell, sell out
D. are sold, have been sold out
什么是尘肺？
