病理性毛发脱落的原因有
A．甲状腺功能减退症
B．应用抗癌药物(环磷酰胺)
C．斑秃
D．脂溢性皮炎
E．肠伤寒
参考答案：A,B,C,D,E
The hurricane damaged many houses and business buildings; it caused 20 deaths. [ ]
A. or else
B. therefore
C. after all
D. besides
