欲测Cu324.8nm的吸收值,为防止Cu327.4nm的干扰,并获得较高的信噪比, 发布时间:2018-01-31 01:14 │ 来源:www.tikuol.com 题型:单项选择题 问题: 欲测Cu324.8nm的吸收值,为防止Cu327.4nm的干扰,并获得较高的信噪比,应选择的光谱通带为()。A.0.2nm B.0.5nm C.1.0nm D.5.0nm
题型:单项选择题 完形填空 My father woke me up early one summer morning announcing, "Get up. You're going with me to cutgrass." The idea 1 my father actually thought I was big enough to help him in his 2 made me feel proud and 3 . From sunup to sundown my father, my younger brother and I 4 in the large yards in a rich part of Atlanta, Georgia. By the end of the day I was tired out, but felt good. I had 5 a hard day'slabour and had earned $6. One day my father found some leaves I'd 6 and pulled me aside. "Clear away these leaves," he said 7 , "and don't make me have to tell you to do it again." The 8 was clear. Today I value theimportance of doing a job 9 the first time. It will never 10 to impress the person you are working for. After two years my father told me and my brother that he felt we were 11 enough to do lawns(草坪) on our own. Every Saturday , we 12 out early in the morning with the same desire and drive we hadgained while working 13 our father. Taking care of lawns was not exciting 14 high-paying, but that didn't matter. It taught me that anyjob is a good job and that 15 I was paid was more than I had before. A newspaper reporter once asked me how someone 16 possible live on a forty-hour- a -weekminimum(最低的) pay. "My father never worked just forty hours a 17 , and neither have I." I replied."If you're only working forty hours, you probably don't want to do 18 better than you're doing." In every job I've 19 -from doing lawns to washing dishes-I have learned something that helped mein my next job. If you 20 hard enough, you can learn from any job you do.( )1. A. what ( )2. A. farm ( )3. A. excited ( )4. A. played ( )5. A. put out ( )6. A. collected ( )7. A. finally ( )8. A. news ( )9. A. right ( )10. A. happen ( )11. A. strong ( )12. A. worked ( )13. A. beyond ( )14. A. and ( )15. A. no matter how( )16. A. must ( )17. A. day ( )18. A. some ( )19. A. found ( )20. A. see B. that B. familyB. tiredB. excisedB. put downB. cleanedB. usuallyB. messageB. quicklyB. seem B. old B. set B. withoutB. and yetB. whatever B. shouldB. year B. any B. lost B. work C. which C. business C. troubled C. worked C. put away C. missed C. unexpectedly C. informationC. fast C. fail C. clever C. turned C. under C. but C. no matter whatC. may C. week C. little C. held C. try D. why D. company D. unpleasant D. struggled D. put in D. noticed D. firmly D. word D. wrong D. begin D. skilled D. figured D. like D. or D. however D. could D. month D. very D. helped D. enjoy 查看答案
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题型:单项选择题 甲企业2011年6月向B企业提供某专利的使用权,使用期5年,一次性收取使用费20000元,但是双方协商达成一致,在试用期的5年里不提供后续服务,款项已经收到。则甲企业当年应确认的使用费收入为( )元。A.2000 B.4000 C.0 D.20000 查看答案
题型:单项选择题 某教师回到办公室说:“二年二班的学生真笨,这堂课我连续讲了三遍,他们还是不会,我是发挥了教师的主导作用了。他们不会我有什么办法”。 如何理解教师主导作用,这位教师全面发挥主导作用了吗 查看答案