A:加水稀释10倍后,pH=4
B:加水稀释后,溶液中c(H+)和c(OH-)均减少
C:加入醋酸钠晶体后,溶液的pH增大
D:加入等体积、pH=11的NaOH溶液后,c(Na+)= c(CH3COO-)
在检测还原糖的实验中,加入斐林试剂时必须要( )
The sentence structure of "I saw him run into the building" is .