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In 1982, Steven Callahan was crossing the Atlantic alone in his sailboat when it struck something and sank. He got into a life boat, but his supplies were . His chances of surviving were small. when three fishermen found him 76 days later, he was alive —much than he was when he started, but alive. His of how he survived is fascinating. His cleverness —how he to catch fish, how he evaporated (蒸发) sea water to fresh water—is very interesting. But the thing that my eye was how he managed to keep himself going when all hope seemed lost, and there seemed no in continuing the struggle. He was starved and worn-out. Giving up would have seemed the only possible choice. When people these kinds of circumstances, they do something with their minds that gives them the courage to keep going. Many people in desperate circumstances in or go mad. Something the survivors do with their thoughts helps them find the courage to carry on difficulties. “I tell myself I can it,” wrote Callahan in his book. “Compared to what others have been through, I’m fortunate. I tell myself these things over and over, up courage…” I wrote that down after I read it. It me as something important. And I’ve told myself the same thing when my own goals seemed off or when my problems seemed too terrible. And every time I’ve said it, I have always come back to my . The truth is, our circumstances are only bad to something better. But others have been through the much worse, that is, in comparison with what others have been through, you’re fortunate. Tell this to yourself over and over again, and it will help you through the rough situations with a little more courage. 小题1: A.full B.rich C.few D.enough 小题2: A.And B.Yet C.Still D.Thus 小题3: A.thinner B.stronger C.worse D.healthier 小题4: A.attitude B.assumption C.instruction D.account 小题5: A.assisted B.tended C.managed D.intended 小题6: A.make B.absorb C.select D.replace 小题7: A.attacked B.caught C.froze D.cheated 小题8: A.operation B.taste C.message D.point 小题9: A.firmly B.completely C.hardly D.generally 小题10: A.deal B.defend C.survive D.observe 小题11: A.similarly B.differently C.gradually D.commonly 小题12: A.pull B.take C.break D.give 小题13: A.for the lack of B.in the face of C.in exchange for D.as a result of 小题14: A.handle B.carry C.follow D.inspect 小题15: A.rolling B.using C.building D.making 小题16: A.defeated B.recommended C.introduced D.struck 小题17: A.far B.long C.ever D.even 小题18: A.feelings B.senses C.ideas D.influences 小题19: A.related B.measured C.contributed D.compared 小题20: A.see B.cut C.get D.think
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【单选题】老师在给同学们讲“圆周率”这一概念,只见她把几个大小不同的圆盘展示给学生:“大家看,这几个圆盘有什么不同”同学们说,颜色和大小不同。然后,老师补充说还有直径、周长等部分也不一样。老师强调指出:“每个圆盘可以分解为圆面、直径、周长和颜色等各个部分,而每个圆盘又都是由这些部分组成的。” 在此基础上,让学生讨论几个圆盘的不同点(圆面大小、直径、周长和颜色)和相同处(周长都是直径的三倍多一点),继而引导...
A.
直觉动作思维占优势
B.
具体形象思维向抽象逻辑思维过渡
C.
抽象逻辑思维占主导
D.
聚合思维占主导
【简答题】背景资料: 某施工单位,承包了二级公路C合同段路基施工,其中,K12+000~K12+300的路基,中间为路堑,两端为路堤,路堤高度4m左右,推土机开挖土质路堑作业方法采用下坡推土法。施工单位采用的施工方法如下图所示,采用推土机从路堑取土填筑两端的路堤。填至规定高度,在路床压实后,施工单位技术人员在现场测定密度(或重度),其中一个步骤是将基板放在平坦表面上,沿基板中孔凿洞,挖出材料后称重、测含水...
【判断题】下图所示为路堤。
A.
正确
B.
错误
【简答题】某公路防护堤的横断面如下图所示.已知斜坡的坡度i=1:1,坡面的铅直高度AC为2m,求斜坡AB的长及其坡角α(答案可保留根号).
【单选题】某公路填方段示意图如图 3 所示,图中1 - 4应为( )。
A.
上路堤;下路堤;上路床;下路床
B.
上路堤;上路床;下路堤;下路床
C.
上路床;上路堤;下路床;下路堤
D.
上路床;下路床;上路堤;下路堤
【单选题】某路堤填土高8m,如图所示。填土γ=18.8kN/m3,c=33.4kPa,φ=20°,地基为饱和黏土,γ=15.7kN/m3,土的不排水抗剪强度cu=22kPa,φu=0,土的固结排水抗剪强度cd=4kPa,φd=22°,路堤填土速度很快,使得地基土中孔隙水压力来不及消散。用太沙基公式判断该工况下地基的稳定性(安全系数K=3),其结果为( )。
A.
K=3.25,稳定
B.
K=3.14,稳定
C.
K=1.28,不稳定
D.
K=0.84,不稳定
【单选题】某铁路线路DK22+300~DK26+400为填方路基,路堤断面图如下图所示,路基面宽13m,路肩宽度为1.5m,路基加宽0.5m。 1.计算下图中填土方量是多少? 2.若此铁路设计时速度200km/小时,区间路基普通土,若需借土,试计算借土方量是多少?
A.
156000 m3        184946.70m3
B.
147600m3    170625.60m3
C.
134560m3  170625.60m3
D.
156000 m3  170625.60m3
【判断题】不论是概率抽样,还是非概率抽样,只要是抽样调查就可以使用样本的结果对总体相应的参数进行推断。
A.
正确
B.
错误
【简答题】一路堤下设有钢筋混凝土泄水管,如图所示,管长L=50m,路堤上游面与水平面的夹角为30°,进口局部阻力系数ζ 进口 =0.91,上下游水位差Z=20m,若要求管内泄流Q=15m 3 /s、水管粗糙系数n=0.013,试确定所需要的管道直径。
【简答题】如题图所示,一路堤高度为5m,顶宽为10m,底宽20m,已知填土重度γ=20kN/m 3 ,试求路堤中心线下O点及M点处的竖向附加应力σ z 值。
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