A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">下一步会出现负值</span>
B、<p style="LINE-HEIGHT: 150%"><span style="FONT-FAMILY: 宋体">肯定需要最多的迭代步骤</span></p><p></p>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">对迭代过程无影响</span>
D、<span style="TEXT-DECORATION: none"><span style="FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 14px; TEXT-DECORATION: none">.</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px; TEXT-DECORATION: none">目标函数值会增长快些</span></span>