A、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: ">放射形</span>
B、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: ">棋盘式 </span>
C、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: ">环放形</span>
D、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-font-family: ">混合形 </span>
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