A：稳定性：PH3＞H2S＞HCl
B：碱性：Al（OH）3＞Mg（OH）2＞NaOH
C：酸性：HIO4＞HBrO4＞HClO4
D：非金属性：F＞O＞S
—It's difficult for me ________ there are few new words in it.
下列自然资源中，属于非可再生资源的是 ( )
