要在一个示波器的屏幕上同时显示两个信号的波形，可采用那些方法？ 发布时间：2017-11-24 06:19 │ 来源：www.tikuol.com 题型：问答题 简答题 问题： 要在一个示波器的屏幕上同时显示两个信号的波形，可采用那些方法？
题型：问答题 简答题 根据图中所给情景完成对话。例: — How do you feel? — I feel sick.1. — ____________________?— Fine.2. — ____________________?— ____________________. 查看答案
题型：问答题 简答题 完形填空。 On a cold winter day, I waited in line to see my hero,Jack Canfield, the author of The Success Principles. During his talk, Jack__1__his wallet, pulled out ahundred-dollar bill, and said, "Whowants this?"__2__shot up in the audience; people leaned forward to see whomJack would__3__. But Ijumped up, ran up the __4__tothe stage, and grabbed the bill. As I was launching myself inthe air, thoughts__5__through my mind - was I about tobe humiliated(羞辱)in front of 800 people? Would they__6__security guards and take me f rom the stage?__7__my desire(欲望,要求)for brave action was louder than any__8__voice. As I got the bill from his hand,he said, "That's it ! Wecan't wait for the__9__to come to us. We must take action to__10__what we want!" After his talk, 1 managed to formally meet Jack and bravely asked for his__11__email address. Over the next months, I sent him emails__12__my vision and dreamswith him. He kindly emailed back lots of encouragement. But my life got__13__with other things. I stopped e-mailingJack. A year later, my dreams had worn away. I thought Jackwould inspire me into action, like a gian__14__that would show me the way. I emailed him, and then again---but got no__15__. As I sat down at my computer to check my emails, I_16__woke up. What was I doing? I was waiting! Now I remembered the crowd, most likely__17__that hundred- dollar biil, while they sat__18__ to their chairs.Usually we all have a "Jack" for whom we wait-whether it's a person, a place or a thing. We __19__believe the gifts of life are just around the corner, and thateverything will come in a(n)__20__way. So we don't try. We give up. But as Wayne cretzky said: "You'll always miss 100% of the opportunities you don't take!" So I stopped waiting and started my writing career.Now what are you waiting for?( )1.A. gave out( )2.A. Cheers ( )3.A.offer( )4.A. path( )5.A. raced ( )6.A. ask ( )7.A. And ( )8.A. careful ( )9.A. opportunitie( )10.A. attract ( )11.A. professional( )12.A. speaking( )13.A. quick ( )14.A. hand( )15.A. news( )16.A. gradually( )17.A. desiring( )18.A. lost( )19.A. sincerely ( )20.A. difficult B. reached for B. ShoutsB. greet B. roadB. started B. callB. SoB. doubtfulB. timesB. acceptB. secretB. describing B. busy B. gate B. notice B. suddenly B. announcing B. stuckB. honestly B. impressive C. picked out C. Heads C.likeC. steps C. appeared C. demandC. ButC. meaningful C. results C. repairC. public C. presenting C. full C. exitC. response C. immediatelyC. beggingC. attached C. falselyC. earlyD. handed in D. HandsD. choose D. route D. existedD. orderD. ()rD. helpful ,. D. aims D. create D. personal D. sharingD.looseD. entrance D. reaction D. slowly D. valuingD. devoted D. correctlyD. natural 查看答案
