1.B 2.D 3.B 4.B 5.A 6.D 7.A
1.ABDE 2.ABCDE 3.AC 4.CDE 5.ABD 6.ABE
1.× 2.× 3.√ 4.√ 5.× 6.√ gr6K6aj8HNSr5MXc3F/hQWl5r+oApe49f/OJEMgtXJJPyRQtvWDFx3OpwaAlw6Yw