A:原子半径:As>Cl>Br
B:热稳定性:HCl>AsH3>HBr
C:还原性:As3﹣>S2﹣>Cl﹣
D:酸性:H3AsO4>H2SO4>H3PO4
—Must I finish the homework tonight? —No, you .You can finish it tomorrow.