下列各组中化合物的性质比较，不正确的是

A．酸性：HClO₄＞HBrO₄＞HIO₄

B．稳定性：PH₃＞H₂S＞HCl

C．碱性：NaOH＞Mg(OH)₂＞Al(OH)₃

D．非金属性：F＞O＞S

All stations which receive a distress alert shall immediately cease（）.

A.any transmission

B.any harmful transmission

C.to use radiotelephone

D.using radiotelephone