A:水电离产生的c(H+)=1×10-12mol/L溶液:NH4+、Na+、Cl-、CO32-
B:使紫色石蕊试液变红的溶液:Fe2+、Mg2+、NO3-、Cl-
C:能使pH试纸变深蓝色的溶液中,Na+、AlO2-、S2-、CO32-
D:含有大量Fe3+的溶液,SCN-、I-、K+、Br-
____cm2.
下列行为不属于学习的是( )
你认为以下哪些看法正确( )
—Yes, she was well-known _____ a nurse in England _____her kindness to the sick and wounded soldiers.