第一级：(最重要)

　　V06108s2; V06110s2; V06134s1,s3; V06141s1,s2,s3; V06142s2; V06144s2; V06148s4; V06316s3; V07102s3; V07109s1,s3; V07118s2; V07139s2; V07141s1,s2; V07142s1,s2; V07143s1,s4; V07148s3; V08120s2,s4; V30018s1,s3,s4; V30020s1,s3,s4; V30033s1,s3,s4; V30034s1,s3,s4; V30036s1,s3,s4; V30037s1,s3,s4; V30038s1,s2,s3; V30039s1,s3; V30044s1,s3; V30049s1,s2,s3; V30059s2,s4; V30060s1,s4; V30061s1,s2,s4; V30062s2,s3,s4; V30072s1,s3,s4; V30074s1,s4; V30076s1,s4; V30078s1,s2,s4; V30080s1,s2,s3; V30081s1,s2,s3; V30085s2,s3; V30086s1,s3; V50233s2,s4

　　第二级：(次重要)

　　V21; V26; V37; V41s1,s2,s4; V66; V67s1,s2,s4; V06102s4; V06111s4; V06113s2,s4; V06119s4; V06125s2; V30019; V30040s2,s4; V30041s2,s4; V30042s1,s3,s4; V30043s3,s4; V30045s1,s3,s4; V30058s1,s3; V30064s2,s3; V30079s1,s3,s4; V30083s1,s3,s4; V40110s2,s3; V50101s1,s3; V50112s4; V50121s4; V50127s3; V50130s2,s3; V50134s4; V50147s2,s3;

　　(作者：环球雅思 曾丽娟)