以下不属于原发皮损的是（）
A.结节
B.疱疹
C.瘢痕
D.风团
E.斑疹
参考答案：C
The matter__________your study surely requires__________carefully.
A．relating to；dealing with
B．related to；dealt with
C．related to；being dealt with
D．relating to；having dealt with
下列那种灭火剂对付乙类火灾最有效。（）
A.泡沫
B.干粉
C.水
D.二氧化碳
