题型:选择题 下列反应不属于氧化还原反应的是( )A.Cu+4 HNO3(浓) △ . Cu(NO3)2+2 NO2↑+2 H2OB.Cu+2FeCl3═CuCl2+2FeCl2C.(NH4)2SO4+2NaOH △ . Na2SO4+2NH3↑+2H2OD.2FeCl3+SO2+2H2O═H2SO4+2HCl+2FeCl2 查看答案
题型:单项选择题 () is the evidence of the contract of carriage between carrier and shipper.A.B/LB.L/CC.D/OD.P/L 查看答案