拉伸试验绘制力一夹头位移曲线图测定Rp0.2时，位移放大倍数的选择，应使非比例伸长段 发布时间：2020-02-26 18:59 │ 来源：www.tikuol.com 题型：单项选择题 问题： 拉伸试验绘制力一夹头位移曲线图测定Rp0.2时，位移放大倍数的选择，应使非比例伸长段0C的长度不小于（）。A.5mmB.10mmC.50mm
题型：单项选择题 用现代汉语表述下列句子。 1）第以今日事势观之。 _________________________________2）则我死后尚有二意洞在也。 _________________________________ 查看答案
题型：单项选择题 完形填空。 The Newspaper Boy Billy is fourteen years old and in the ninth grade. He has a part-time 1 which gets him up every morning at five o'clock. He is a 2 boy. Each morning, Billy 3 the house at 5:15 to go to the corner 4 the newspapers are. The newspaperswere 5 to the corner 6 truck at midnight. He always takes a wagon to carry them. In the winter it is still 7 when he gets up, but during the rest of the year it is light. Billy must deliver thenewspapers to the 8 of people on his route in all kinds of weather. He tries to put each paper on the porch(门廊) where it will be protected 9 wind and rain or snow. His 10 think he does a good job. Sometimes they give him tips. Billy 11 about $70 per month, and he is saving some of the money to go to 12 . He 13 the rest on records and clothes. Once a month, he has to 14 money from his customers. Since many of them work during the day,Billy has to collect the money at 15 . Sometimes, when Billy is 16 , his older brother has to deliver the newspapers. Once, Billy's father had to help. Billy has seventy 17 now, but he hopes to get 18 soon. Someday, if he gets many more customers, Billy might win a prize for being an outstanding newspaper boy. He wants to win a 19 to Europe, but he will be 20 if the wins a new bicycle. ( )1. A. work ( )2. A. milk ( )3. A. reaches ( )4. A. what ( )5. A. delivered ( )6. A. by ( )7. A. warm ( )8. A. farms ( )9. A. for ( )10. A. friends ( )11. A. borrows ( )12. A. college ( )13. A. pays ( )14. A. borrow ( )15. A. once ( )16. A. happy ( )17. A. classmates ( )18. A. more ( )19. A. plan ( )20. A. enough B. job B. mail B. gets B. where B. put B. in B. dark B. cars B. with B. classmates B. earns B. hospital B. costs B. save B. times B. sick B. workers B. many B. trip B. full C. school C. newspaper C. leaves C. how C. got C. on C. cold C. rooms C. in C. customers C. lends C. work C. spends C. spend C. night C. glad C. customers C. much C. prize C. angry D. home D. cow D. arrives D. when D. gave D. from D. bright D. houses D. form D. teachers D. gives D. place D. takes D. collect D. school D. nice D. people D. most D. game D. happy 查看答案