理工英语 2 答案作业一:15: ACBAB 6-10: ACBAB 1115: C C A C B 16-20: B A CA C 2125: C A E B D 2630: F T F T T 31-35: C A C C B 作业二:15: A B A A C 6-10: B C B B A 11-15: B A C B B 2125:T F F T T 26-30: A A A C C 3135: A C C B B 作业三:1-5: A B A B C 6-10: B A A C A 11-15: B C B C B 1620: C A B B A 21-25: D B A C E 2630:T T F F T 3135: A A B C A