604385
作业二:1B 2A 3A 4B 5B 6C 7C 8B 9D 19C 11A 12D 13D 14D 15A.C.D 16C 17A 18C 19A 20A 21B 22B 23A 24B 25C 26D 27A 28C 29C 30D
31√ 32× 33× 34× 35√ 36√ 37√ 38× 39× 40× 41√ 42× 43× 44× 45× 46√