下列比较中,正确的是 ( )
A:离子半径:S2->Cl->Na+>Mg2+
B:热稳定性:H2S<H2Se<HCl
C:酸性:HF>HCl>HBr>HI
D:氧化性:F2>Cl2> P > S
①由图a、b、c可知:____;
②由图d和e可知:____.
Ms Jones needs one____(人)to help her do the work.