A、C<sub>0sub>-C<sub>0sub> B、B<sub>0sub>-B<sub>0sub> C、2(B<sub>0sub>-B<sub>0sub>) D、B<sub>0sub>-B<sub>0sub>-B<sub>0sub>
A、C<sub>0sub>-C<sub>0sub> B、B<sub>0sub>-B<sub>0sub> C、2(B<sub>0sub>-B<sub>0sub>) D、B<sub>0sub>-B<sub>0sub>-B<sub>0sub>
A、SS<sub>总sub>=SS<sub>区组sub>+SS<sub>误差sub> B、SS<sub>总sub>=SS<sub>组间sub>+SS<sub>组内sub> C、SS<sub>总sub>=SS<sub>处理sub>+SS<sub>区组sub>+SS<sub>误差sub> D、MS<sub>区组sub>>MS<sub>组间sub>
A、b=0 B、SS<sub>残sub>=SS<sub>总sub> C、SS<sub>回sub>=SS<sub>总sub> D、SS<sub>残sub>=SS<sub>回sub>
A、C<sub>7sub>H<sub>12sub> B、C<sub>7sub>H<sub>16sub> C、C<sub>7sub>H<sub>8sub> D、C<sub>7sub>H<sub>14sub>
A、HC<sub>3sub>型和HC<sub>4sub>型 B、YJ<sub>3sub>型和YJ<sub>4sub>型 C、HC<sub>3sub>型和YJ<sub>4sub>型 D、HC<sub>4sub>型和YJ<sub>3sub>型
A、应用范围广 B、K<sub>2sub>Cr<sub>2sub>O<sub>7sub>溶液稳定 C、K<sub>2sub>Cr<sub>2sub>O<sub>7sub>无公害 D、K<sub>2sub>Cr<sub>2sub>O<sub>7sub>易于提纯 E、在稀盐酸溶液中,不受Cl-影响
A、K<sub>2sub>CrO<sub>7sub> B、K<sub>2sub>Cr<sub>2sub>O6 C、K<sub>2sub>CrO<sub>4sub> D、K<sub>2sub>Cr<sub>2sub>O<sub>7sub>