大黄活血宜
A.炒炭B.醋制C.酒制D.生用E.姜汁制
参考答案:C
The thief was brought in, his hands ____________ behind his back. [ ]
A. tying
B. tied
C. being tied
D. having tied
下列关于焊接施工安全规定,错误的是()
A.密闭空间焊接作业应设置通风、绝缘、照明装置和应急救援装备
B.密闭空间焊接作业应设专人监护,金属容器内照明设备的电压不得超过12V
C.高处电焊、气割作业,作业区周围和下方应采取防火措施
D.雨天露天电焊作业应穿雨衣