色素失禁症的基因定位于 ["A．Xq28 ","B．Xq22．3 ","C．1q21 ","D．2q33-q35 ","E．3q21-q22"]
色素失禁症的遗传模式为 ["A．X连锁隐性遗传","B．X连锁显性遗传","C．常染色体显性遗传","D．常染色体隐性遗传","E．多基因遗传"]
不属于多基因遗传病的是 ["A．痤疮 ","B．银屑病 ","C．白癜风 ","D．鱼鳞病 ","E．斑秃"]
单纯性大疱性表皮松解症的水疱位于 ["A．真皮内","B．透明板内","C．致密下层","D．角质层内","E．表皮内"]
圆柱度公差可以同时控制（）。 ["A．圆度。","B．素线直线度。","C．径向全跳动。","D．同轴度。","E．轴线对端面的垂直度。"]
指示生物的选择方法有（）、（）、（）、（）。
