A、<span style="FONT-SIZE: 14px; TEXT-DECORATION: none">单一 </span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">几个平行的 </span>
C、<p style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify; LINE-HEIGHT: 150%"><span style="LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; FONT-SIZE: 14px">几个相交的</span></p><p></p>