A.完整、完整性差、較破碎、破碎 B.完整、較完整、較破碎、破碎 C.完整、較完整、完整性差、較破碎、破碎 D.完整、較完整、完整性差、破碎
A.8~12 B.10~15 C.12~16 D.16~24
A.14.7:3.7 B.14.7:14.7 C.1:2 D.2:1