题干

如图,AB是⊙O的弦,D为OA半径的中点,过D作CD⊥OA交弦AB于点E,交⊙O于点F,且CE=CB.

上一题 下一题 0.0难度 选择题 更新时间:2018-08-07 03:09:09

答案(点此获取答案解析)

同类题2

完形填空

    The world always makes way for the dreamer

    When I was twelve years old, my father took me to see Zig Zigler. I remember sitting in that dark hall listening to Mr. Zigler1everyone's spirits up to the ceiling. I 2there feeling like l could do anything. When we got to the car, I turned to my father and said, "Dad, I want to3 people feel like that." My father asked me 4 I meant. "I want to be a motivational speaker just like Mr. Zigler." I replied. A(An)5  was born.

    Recently, I began seeking my dream of motivating others. 6  a four-year relationship with Fortune 100 Company 7as a sales-trainer and ending as a regional(地区的) sales manager, I left the company at the height of my8. Many people were9that I would leave after earning a six-figure income. And they wondered10I would risk everything for a dream.

    I made my 11 to start my own company and leave my worryingless position after12a regional sales meeting. The vice-president of our company made a13 that changed my life. He asked us, "If a god would offer you three wishes, what would they be?" After giving us a(an)14 to write down the three wishes, he then asked us, "Why do you need a 15 ?" I would never forget the power I felt at that moment. I realize that 16 I had accomplished in the past had prepared me for this moment. I was ready and didn't need a god's help to become a motivational speaker. A motivational speaker was17 .

    Having made that decision, I was immediately18 . One week after I gave notice, my husband was laid off from his job, and now we had no 19. But I held fast to my dream. The wonder really began to happen. In a short time my husband found a better job. And I was able to book several 20 engagements with new customers. I discovered the incredible power of dreams.

同类题3

任务型阅读       

     Becoming Refreshed without sleeping

     Sometimes there is just not enough hours in the day to get everything done and get a good night’s rest.____ Once in a while you can get away with a sleepless night and still feel reasonably good by adjusting your meals and activities.

     ____ The last thing you want to do when you are tired is get warm and cozy, this will cause you to fall asleep. Keeping the air conditioner on will make you feel much more alert and refreshed.

     Eat small amounts. Eating small amounts of healthy food will help refresh you. Fruit and nuts are a good choice because they are nutritious and will energize you ____Try to stick to low carbon meals to keep you going. Chewing gum after your snack or small meal will also help keep you awake.

     Keep it bright. When it is dark your body thinks it is time to go to sleep. Turn on lots of lights, which will trick your body into waking up and feeling better. ____ You get double the benefits if it is daytime.

     Take a break. Taking a little break will help you in the long run. Turn up some energizing music to get yourself positive. Relax and talk to a friend in person or on the phone for a few minutes.____

A. Keep it cool

B. Calm down and sleep

C. Avoid big, heavy meals as they will make you tired

D. Going outside whether it is day or night for some fresh air

E. Missing sleep regularly can make you sick and should be avoided

F. When you are tired, you may just want to sit around and do nothing

G. Having a good time for a few minutes will refresh you quicker than anything else.