如图所示是利用水波槽观察到的水波衍射图象，从图象可知（ ） A．B侧波是衍射波 发布时间：2017-06-06 13:30 │ 来源：www.tikuol.com 题型：选择题 问题： 如图所示是利用水波槽观察到的水波衍射图象，从图象可知（ ）A．B侧波是衍射波B．A侧波速与B侧波速相等C．增大水波波源的频率，衍射现象将更明显D．增大挡板之间的距离，衍射现象将更明显
题型：选择题 关于统计图的说法正确的有（）。A.直方图的纵坐标通常为数据的大小B.直方图的纵坐标也可以是百分比C.饼状图通常用来描绘总体中各个部分的比例D.盒形图在投资实践中被演变成著名的K线图E.散点图经常用来描述时间序列的数据 查看答案
题型：选择题 完形填空 Learning to Accept I learned how to accept life as it is from my father. 1 , he did not teach me acceptance when he wasstrong and healthy, but rather when he was 2 and ill. My father was 3 a strong man who loved being active, but a terrible illness 4 all that away. Now he can no longer walk, and he must sit quietly in a chair all day. Even talking is 5 . One night, I went tovisit him with my sisters. We started 6 about life, and I told them about one of my 7 . I said that we must very often give things up 8 we grow----our youth, our beauty , our friends-but it always _9 thatafter we give something up, we gain something new in its place. Then suddenly my father 10 up. Hesaid ,"But, Peter. I gave up 11 ! What did I gain?" I thought and thought , but I could not think of anything to say. 12 he answered his own question: "I 13 the love of my family." I looked at my sisters,and saw tears in their eyes, along with hope and thankfulness. I was also 14 by his words. After that, when I began to feel irritated (愤怒的)at someone, I 15 remember his words and become 16 .If he could replace his great pain with a feeling of love for others,then I should be 17 to give up my small irritations. In this 28 , I learned the power of acceptance from my father. Sometimes I 19 what other things I could learn from him if I had listened more carefully when I was aboy. For now, though, I am gratetful for this one 20 . ( )1. A. However ( )2. A. tired ( )3. A. already ( )4. A. put ( )5. A. impossible ( )6. A. worrying ( )7. A. decisions ( )8. A. before ( )9. A. suggests ( )10. A. summed ( )11. A. something ( )12. A. Surprisingly ( )13. A. gained ( )14. A. warned ( )15. A. would ( )16. A. quiet ( )17. A. able ( )18. A. case ( )19. A. doubt ( )20. A. award B. Therefore B. poor B. once B. threw B. stressful B. talking B. beliefs B. since B. promises B. turned B. anything B. Immediately B. accepted B. astonished B. could B. calm B. likely B. way B. guess B. word C. Afterwards C. weak C. only C. sent C. difficult C. caring C. ambitions C. as C. requires C. spoke C. everything C. Naturally C. had C. attracted C. shoud C. relaxed C. free C. method C. know C. lesson D. Meanwhile D. slow D. still D. took D. hopeless D. asking D. experience D. till D. seems D. opened D. nothing D. Certainly D. enjoyed D. touched D. might D. happy D. ready D. form D. wonder D. gift 查看答案
题型：选择题 关于着陆灯的叙述不正确的是（）A.着陆灯因故障原因收不起时，不影响飞行高度与速度B.左右着陆灯分别由AC1和AC2提供电源C.着陆灯放下时在上ECAM上有绿色的状态记忆信息D.着陆灯上有两个调节螺帽调节的角度可以大于90.5 查看答案
