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Though there is much to be concerned about, there is far, far more for which to be thankful. Though life’s goodness can at times be overshadowed (黯然失色),  it is 41 outweighed. For every single act that is senselessly destructive, 42 are thousands more small, quiet acts of love, 43 and sympathy. For every person who seeks to hurt, there are many, many more who 44 their lives to helping and to healing. There is a goodness to life that 45 be denied. In the most remarkable views and in the smallest details, look 46 , because that goodness always comes shining through. There is no 47 to the goodness of life. It 48 more abundant(充裕的) each time you feel it. The 49 you experience and appreciate the goodness of life, the more there is to be lived. Even 50 the cold winds blow and the world seems to be 51 in foggy shadows, the goodness of life lives 52 . Open your eyes, open your heart, 53 you will see that goodness is everywhere. Though the goodness of life 54 at times to suffer hardships, it is always going on there. For in the 55 moment, it becomes more clear that life is a 56 treasure. And so the goodness of 57 is made even stronger by the very things that would go against it. Time and time again when you feared it was 58 forever, you found that the goodness of life was really only a / an 59 away. Around the next corner, inside every moment, the goodness of life is there to surprise and 60 you. 小题1: A.always B.never C.often D.usually 小题2: A.there B.here C.they D.those 小题3: A.worry B.anxiety C.kindness D.upset 小题4: A.make B.put C.contribute D.devote 小题5: A.needn't B.mustn't C.can’t D.won't 小题6: A.suddenly B.closely C.roughly D.simply 小题7: A.limit B.denying C.doubt D.point 小题8: A.loses B.grows C.plants D.goes 小题9: A.less B.fewer C.more D.most 小题10: A.when B.if C.though D.before 小题11: A.shone B.covered C.decorated D.suffered 小题12: A.with B.by C.through D.on 小题13: A.yet B.or C.and D.still 小题14: A.seems B.looks C.proves D.appears 小题15: A.shortest B.darkest C.brightest D.fastest 小题16: A.priceless B.valueless C.useless D.worthless 小题17: A.heart B.life C.wealth D.health 小题18: A.disappeared B.lost C.gone D.left 小题19: A.hour B.mile C.month D.moment 小题20: A.delight B.regret C.shock D.disappoint
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【判断题】建 国后至改革开放前, 我国社会主义建设最大的成就是基本建立了独立的、比较完整的工业体系和国民经济体系
A.
正确
B.
错误
【多选题】下列各选项中属于液压系统优点的是( )
A.
功率密度大(即单位体积所具有的功率大), 结构紧凑,质量轻。
B.
工作时受温度影响较大,不宜在很高或很低的温度下工作。
C.
传动介质为油液,液压元件具有自润滑作用;有利于延长液压元件的使用寿命,同时也易于实现 自动过载保护。
D.
液压元件质量轻、惯性矩小、变速性能好,可实现高频率换向。
E.
液压元件易于实现标准化、系列化和通用化, 有利于生产设计.
【单选题】下列选项属于液压传动优点的是( )。
A.
易实现过载保护
B.
便于远距离传送
C.
易实现精确的定比传动
D.
传动效率高
【判断题】桁架结构中的结点都是铰结点。
A.
正确
B.
错误
【单选题】下列选项中,属于液压传动优点的是( )
A.
调速范围小
B.
可实现无级调速
C.
保证严格的传动比
D.
对管理要求高
【判断题】刚架和桁架都是直杆组成的结构,二者的区别是桁架中的结点全部都是铰结点,刚架中的结点全部或部分为刚结点。
A.
正确
B.
错误
【单选题】互感电压 u 12 的大小取决于( )
A.
某一时刻的电流 i 1
B.
某一时刻的电流 i 2
C.
某一时刻电流 i 1 的变化率
D.
某一时刻电流 i 2 的变化率
【简答题】互感电压u 12 的含义是______,其大小主要取决于______。
【简答题】互感电压u 12 的大小取决于______;u 21 的大小取决于______。 A.i 1 大小 B.i 2 大小 C.i 1 变化率 D.i 2 变化率
【判断题】正常测量值应该在温度计测量范围上限值的1/2.
A.
正确
B.
错误
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