题目

已知⊙O中，弦AB的长等于半径，P为弦AB所对的弧上一动点(不包括点A点B），则∠APB的度数为（   ）.  A. 30°                B. 150°          C. 30° 或150°    D. 60°或120°  答案：C解析:略 阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。 AThere was a fire in the factory at about 1:40 last night. A reporter interviewed some people about it this morning.Reporter: What were you doing when the fire broke out?I was preparing a report when I got the phone call from Jim. I quickly drove to the factory. The firefighters were putting out the fire when I got there. They arrived several minutes before me.TomThe manager of the factoryI was on duty last night. I smelled something burning. When I got up, I saw smoke coming from the window of the workshop(车间). I called 119 and our manager at once. And they both arrived quickly.JimA worker We drove to the factory as soon as we got the phone call at 1:47 am. We arrived at about 1:55 am and soon put it out. No one got hurt in the fire. It's dry these days. We hope all the families and factories should be more careful.JeffA firefighter（1）What was Tom doing when he got the phone call?A.Sleeping.B.Watching TV.C.Hanging out with friends.D.Preparing a report.（2）When did the firefighters get the phone call?A.At 1:40 am.B.At 1:47 am.C.At 1:55 am.D.At 2:07 am.（3）Which of the following is TRUE?A.Jim arrived at the factory first.B.The reporter was working when the fire broke out.C.Jeff said it was dry those days.D.Jim helped the firefighters put out the fire.