第一级：(最重要)
V06111s4; V06113s2,s4; V06114s2; V06119s4; V06121s1; V06134s1,s3; V06138s1; V06142s2; V07134s2,s4; V07135s1,s2; V07137s1; V07138s2,s3; V07139s2; V07141s1,s2; V07142s1,s2; V07143s1,s4; V07147s1,s4; V07148s1,s3; V30018; V30019; V30033s3,s4; V30036s3,s4; V30037s1,s3,s4; V30038s1,s2,s3; V30039s1; V30058s1,s3; V30059s4; V30074s3; V30076s1,s3; V30078s1,s2,s4; V30079s1,s3,s4; V30080s1,s2; V30081s1,s2,s3; V30083s1,s3,s4; V30085s2; V30086s1,s2; V30090s2,s3; V40103s2; V50127s3; V50130s2,s3; V50134s4; V50147s2,s3;
第二级：(次重要)
V22; V24; V27; V29; V37s2,s3,s4; V66; V06125s2; V06130s3; V06141(V60141)s2,s3; V06144s1,s2; V06146s1; V06148s4; V07102s3; V07118s2; V30014; V30015; V30020s1,s4; V30032s1,s3; V30034s3,s4; V30040s2,s4; V30041s2,s4; V30042s1,s3,s4; V30043s3,s4; V30044s1,s3; V30045s1,s3,s4; V30049s1,s2,s3; V30060s1,s3,s4; V30061s1,s2,s4; V30062s2,s3; V30064s1,s2,s3; V40110s2,s3; V40112s3,s4; V50121s4;(作者：环球雅思曾丽娟)
责任编辑：虫虫
