A:c(I﹣)=0.1 mol/L的溶液中:Ca2+、NO3﹣、Fe3+、Cl﹣
B:SO2饱和溶液中:NH4+、K+、CO32﹣、ClO﹣
C:放入镁带有气体逸出的溶液中:Na+、K+、Cl﹣、SO42﹣
D:水电离出c(H+)=1×10﹣10mol/L溶液中:Cu2+、Na+、S2﹣、CH3COO﹣
下列有关细胞的叙述,错误的是( )
谁怕? ____。(苏轼《定风波》)
下列哪一组结构或物质的元素组成很可能是不相同的 ( )
____(can’t, cold)
Only when we realize how serious the environment is damaged, _______ is usually ignored, ______ try our best to fight against it.