以下可以达到灭菌水平的化学消毒剂是
B
暂无解析
进行行情预测应遵循的基本原则包括()
国民生产总值等于国民生产净值加上()
Ourteacher__________ustopractiseourspokenEnglishasoftenaspossible.
Forsomereason,it__________alldayoverthetwoweeks.
--CanIspeaktoMrSmith,please?
--_________.Heisgivingatalkatameeting.