题目

△ABC为⊙O的内接三角形，若∠AOC＝160°，则∠ABC的度数是                                                            ( ) A．80°                          B．160° C．100°                         D．80°或100° 答案：D解析 如图，∵∠AOC＝160°， ∴∠ABC＝∠AOC＝×160°＝80°， ∵∠ABC＋∠AB′C＝180°， ∴∠AB′C＝180°－∠ABC＝180°－80°＝100°. ∴∠ABC的度数是：80°或100°. 答案 D 完形填空。      Last night, I was waiting for a taxi. After 5 minutes, I was   1  . The driver seemed to be angry. I asked himwhat the   2   was. He said he had just come from the airport without a   3  , which was basically $70 in lost fare.      Over the course of the ride, the anger   4   died down. He mentioned he had read an article saying the   5   people are the ones that give, so he hoped he'd have more   6   to give in his life. I was starting to   7   beingwith him! We continued talking about why   8   is so beneficial both to the giver and the receiver and different ways to   9   it.      As we arrived at my destination, I  10  my fare. But I pulled out an extra $20 and said, "Since we've beentalking about this whole time, I wanted to share that  11  with you. I've already paid my fare, but here's an extra little bit. You can  12  it, since you're already down $70 from the airport. But if you want to experience the  13  of the gift, then tell the next passenger in this taxi that their ride is a gift from another and they can  14  their gratitude (感激) in whatever way."     The man turned toward me, tears in his eyes, and said, "Sir, I have a better  15 . You give that $20 to a  16  person around here and I'll treat the next passenger with a  17  ride myself.      Wow. This man was  18  10 minutes ago. I got out and walked around trying to  19  someone who neededhelp before heading to my destination.     It was an honor meeting that driver and  20  the lesson of how everyone is capable of giving. (     )1. A. gotten off       (     )2. A. question          (     )3. A. friend            (     )4. A. never             (     )5. A. happiest         (     )6. A. kindness         (     )7. A. mind              (     )8. A. collecting        (     )9. A. practice          (     )10. A. printed           (     )11. A. adventure         (     )12. A. refuse            (     )13. A. direction         (     )14. A. share             (     )15. A. gift              (     )16. A. homeless          (     )17. A. long              (     )18. A. bored            (     )19. A .save              (     )20. A. learning          B. put off       B. time          B. stranger     B. even          B. poorest       B. chances       B. stop          B. giving       B. explain      B. recorded     B. information   B. raise         B. power         B. earn          B. idea          B. native       B. comfortable        B. tired         B .find          B. preparing     C. called up          C. problem            C. driver             C. slowly             C. richest           C. suggestions        C. allow              C. receiving          C. watch              C. paid              C. language           C. keep               C. weight             C. forget             C. opinion            C. nice               C. free               C. rude               C. protect            C. finishing        D. picked up       D. cost            D. customer       D. quickly         D. strongest       D. money           D. enjoy           D. existing        D. consider        D. examined                  D. feeling         D. spend           D. size            D. miss            D. ride            D. brave           D. safe            D. angry           D. tell            D. providing