下列物质的鉴别方法错误的是[ ] A.用肥皂水鉴别软水和硬水 B.用带火星的木条 发布时间:2017-07-20 13:49 │ 来源:www.tikuol.com 题型:选择题 问题: 下列物质的鉴别方法错误的是[ ]A.用肥皂水鉴别软水和硬水B.用带火星的木条鉴别空气和氧气C.用灼烧法鉴别棉纤维和羊毛纤维D.用酚酞溶液鉴别稀盐酸和稀硫酸
题型:选择题 Mrs. Ohama spoke to the graduates of Martin luther King Jr. High School on Saturday in her only high school commencemenl (毕业典礼)speech this year. The ceremony___1____in the gymnasium of Tennessee State University.'The first lady told her 170 ___2_____ that she spent too much of her time in college _____3___ on acadamic achievements. While her success in college and law school ____4____ a good job, she said, she ended up focusing on public service. “My message to you today is that don’t ____5______ a minute living someone else’s dream”she said. “It ______6___ a lot of real work to discover what brings you___7____ and you won’t find what you love simply by _____8_____ mailboxes or surfing the net."She said MLK reminded her of her own high school ______9____ in Chicago. “My No. 1 _____10__ was to go to a high school that would push me and___11______me,” she said: “I wanted to go somewhere that would ____12_____achievement. ___13_____ schools like this don't exist for every kid,” she said. “You are blessed.”The first lady told graduates that__14____ may be a part of their college lives and careers, and that how they respond ___15_____ what they will became. “That’s when you ___16_____what you are really made of in those hard times,” she said. “But you can only do that if you’re willing to put yourself in a position ____17_____ you might fail.” Overcoming diffcultie has been the ____18_____of many great people,she said, “Oprah was demoted (降职)from her first job as a news reporter, and now she doesn’t even need a last name,” she said of media giant Oprah Winfrey.And then there’s this guy Barack Obama. I could ____19______a whole afternoon talking about his failures. He ___20____ his first race for Congress”.the first lady joked, “and now he gets to call himself my husband.小题1:A.happened toB.took placeC.occurred toD.came across小题2:A.graduatesB.teachersC.studentsD.teenagers小题3:A.dependingB.focusingC.decidingD.living小题4:A.led toB.referred toC.looked forward toD.occurred to小题5:A.spendB.spoilC.enjoyD.waste小题6:A.demandB.takesC.spendD.benefit小题7:A.energyB.powerC.joyD.laughter小题8:A.openingB.checkingC.writingD.designing小题9:A.experienceB.memoryC.failureD.events小题10:A.taskB.goalC.homeworkD.wish小题11:A.disappointB.encourageC.satisfyD.challenge小题12:A.celebrateB.congratulateC.applyD.analyse小题13:A.UnfortunatelyB.FortunatelyC.OccasionallyD.Unexpectedly小题14:A.happinessB.sadnessC.failureD.success小题15:A.affectsB.determinesC.dedicatesD.donates小题16:A.find outB.pull outC.beak outD.hold out小题17:A.whatB.whichC.whereD.that小题18:A.markB.shortcomingC.pointD.advantage小题19:A.turn onB.take onC.turn upD.take up小题20:A.abandonedB.lostC.wonD.obtain 查看答案
题型:选择题 某建设项目的现金流量为常规现金流量,在基准折现率为5%时,净现值为100万元,当基准折现率为8%时,该项目的NPV( )。A.大于100万元B.小于100万元C.等于100万元D.以上情况都可能出现 查看答案