用于皮肤及器械消毒的酒精浓度是() ["70%(w/w)","95%(w/w)","20%(w/w)","100%(w/w)"]
对待顾客,下面哪中表现不得当()。 ["A、主动应上前,热情问候","B、面带微笑;你好欢迎光临","C、对不起,麻烦你稍等一下","D、这边这边,停这边"]
E-UTRAN系统中,基站的覆盖半径最大可达?() ["A、10KM","B、30KM","C、50KM","D、100KM"]
铝合金玻璃隔断的施工。
可用于皮肤、粘膜及创面消毒药是() ["福尔马林","氧化钙","过氧乙酸","洗必泰"]
遥信属于模拟量输入还是数字量输入()