阴痒的发病主要是以下哪项功能失常引起() ["肝、心","肺、肝","肺、肾","肺、脾","肝、肾"]
婴儿喝冰水容易()。 ["影响食欲","引起呕吐","引起胃黏膜血管收缩","造成稀便"]
设某企业上期实际销售量为50000件,上期预测销售量为55000件,本期实际销售量为53000件,平滑系数为0.5,则下期的预测销售量为() ["52500件","54000件","51250件","52750件"]
哪些安全工器具应进行试验?
武汉失业保险金如何计算?最长能领取多久?
诉讼时效期间延长