Middle School Students' Learning Newspaper Mathematics Weekly Beijing Normal University Middle School Entrance Examination Edition No.33 Answer
I . 1 ~ 8 . dbadacdc ii . 1. 120 2 . 98 . 505； 37,8,42 3. Fourth place. AB, the internal difference is 5.39 43 seconds, 6.9 7.40, and the complementary angle of the same angle is equal to 8. B.