两振幅均为A的相干波源S1和S2相距（λ为波长）。若在S1、S2的连线上，S2外侧的 发布时间：2018-01-25 21:17 │ 来源：www.tikuol.com 题型：单项选择题 问题： 两振幅均为A的相干波源S1和S2相距（λ为波长）。若在S1、S2的连线上，S2外侧的各点合振幅均为2A，则两波的初相位差是（）。A．0B．C．πD．
题型：单项选择题 (三) 位于深圳市南山区的某超市保安人员怀疑袁某偷拿了超市的东西，于是拦住袁某不让其离开，袁某不承认，与保安人员发生口角，继而有打斗。保安人员迅速制服了袁某，随即对其进行殴打，致其轻伤。请回答下列题。对本案的立案管辖，下列说法正确的是：( )A．本案只能由公安机关立案侦查B．袁某可以向人民法院提起自诉C．应当由人民法院对本案进行立案侦查D．如果袁某向公安机关控告，公安机关应当受理 查看答案
题型：单项选择题 某华侨个人投资城市医院建设，工程估算投资2600万元，主要设备约160万元。确定该项目是否为必须招标项目的准确表述是( )。A．属国外投资，是必须招标项目B．属个人投资，不是必须招标项目C．属公共利益工程，是必须招标项目D．符合招标范围和规模标准规定，是必须招标项目 查看答案
题型：单项选择题 完形填空 When I was six years old, my sister, Sally Kay, was a submissive three-year-old girl. For some reasons, I thought we needed to 1 some money. So I decided we should "hire out" as maids. We visited the neighbors, 2 to clean houses for them for $1. 3 our offer was reasonable, there were no takers. One neighbor even 4 my mom to tell her what we were doing. Mother had just hung up the phone 5 we came into the house. "Girls," mother asked, "why were you two 6 the neighborhood telling people you would clean their houses?" We both denied. That her dear little girls could be such "boldfaced (厚颜无耻的) liars" made her feel shocked and terribly 7 . Mom then told us that Mrs. Jones had just called and told her everything. Faced with the truth, we 8 what we had done. Mom tried to explain how much a fib (小谎) hurt 9 she didn't feel that we really understood. Then Mom cheerfully asked, "Would you two like to go to see the movie The Matinee this afternoon?" "Oh, wonderful!" After lunch, we got bathed and all 10 up. It was like getting ready for a birthday party. We 11 outside the apartment, not wanting to miss the 12 that would take us downtown. At the bus station, Mom stunned (使震惊) us by saying, "Girls, we are not going to the 13 today." "What?" we objected 14 . "What do you mean? Aren't we going to The Matinee?" She explained this was how much a fib could hurt. "It is important that what we say is 15 ," Mom said. "I fibbed to you just now and I felt 16 . I don't want to fib again and I'm 17 you don't want to fib again either. People must be 18 to others." That was 19 my sister and I learned to be truthful. It was a(n) 20 that we would never forget.( )1. A. produce ( )2. A. offering ( )3. A. Although ( )4. A. met ( )5. A. until ( )6. A. going around ( )7. A. encouraged ( )8. A. recognized ( )9. A. after ( )10. A. looked ( )11. A. talked ( )12. A. ticket ( )13. A. cinema ( )14. A. sadly ( )15. A. humorous ( )16. A. happy ( )17. A. afraid ( )18. A. enthusiastic ( )19. A. how ( )20. A. lesson B. earn B. telling B. Since B. found B. when B. searching forB. challenged B. admitted B. but B. stood B. laughed B. bus B. house B. quietly B. valuable B. awful B. pleased B. sympathetic B. why B. topic C. steal C. asking C. So C. persuaded C. before C. shouting at C. hurt C. scolded C. or C. stayed C. hurried C. film C. neighbor's C. patiently C. true C. proud C. sure C. good C. whether C. subject D. loan D. giving D. If D. telephoned D. where D. heading for D. excited D. discussed D. as D. dressed D. reminded D. call D. barber's D. weakly D. worth D. funny D. curious D. honest D. there D. idea 查看答案
题型：单项选择题 《孟子》是__① _经典之一。书中记载了__② _时期思想家、政治家、教育家孟轲及其弟子的政治、教育、哲学、伦理等思想观点和政治活动，其中《鱼我所欲也》提出了__③ _的主张。 查看答案
（λ为波长）。若在S1、S2的连线上，S2外侧的各点合振幅均为2A，则两波的初相位差是（）。
（λ为波长）。若在S1、S2的连线上，S2外侧的各点合振幅均为2A，则两波的初相位差是（）。