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【单选题】
Part A Directions: You will hear a talk. As you listen, answer Questions 1-10 by circling TRUE or FALSE. You will hear the talk ONLY ONCE. You now have 1 minute to read Questions 1-10. 听力原文: From good reading we can obtain pleasure,companionship,experience,and instruction.A good book may absorb our attention so completely that for the time being we forget our surroundings and even our identity.Reading good books is one of the greatest pleasures in life.It increases our contentment when we are cheerful.and lessens our troubles when we are sad.Whatever may be our main purpose in reading,our contact with good books should never fail to give us enjoyment and satisfaction. With a good book in our hands we need never be lonely.Whether the characters portrayed are taken from.real life or are totally imaginary they may become our companions and friends.In the pages of books we can walk with the wise and the good of all lands and all times.The people we meet in books may delight us either because they resemble human friends whom we hold dear or because they present unfamiliar types whom we are glad to welcome as new acquaintances.Our human Mends Sometimes may bore us,but the friends we make in books need never weary us with their company.By turning the pages we can dismiss them without any fear of hurting their feelings.When human friends desert us.good books are always ready to give us friendship,sympathy,and encouragement. One of the most valuable gifts bestowed by books is experience.Few of us can travel far from home or have a wide range of experiences.but all of us can lead varied lives through the pages of books.Whether we wish to escape from the seemingly dull realities of everyday life or whether we expect to vis it some far-off place,a book will help us when nothing else can.To travel by book we need no bank account to pay our way;no airship or ocean liner or stream-lined train to transport us:no passport to enter the land of our heart's desire.Through books we may get the thrill of hazardous adventure without danger.We can climb lofty mountains,brave the perils of an antarctic winter,or cross the scorching sands of the desert,all without hardship.In books we may visit the studios of Hollywood;we may mingle with the gay throngs of the Paris boulevards;we may join the picturesque peasants in an Alpine village or the kindly natives on a South Sea island.Indeed,through books the whole world is ours for the asking.The possibilities of our literary experiences are almost unlimited.The beauties of nature,the enjoyment of music,the treasures of art,the triumphs of architecture,the marvels of engineering are all open to the wonder and enjoyment of those who read. A good book may draw our attention so completely that we forget our surroundings and even our identity for the time being.
A.
Right
B.
Wrong
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【单选题】如图是质谱仪的工作原理示意图.带电粒子被加速电场加速后,进入速度选择器.速度选择器内存在相互正交的匀强磁场和匀强电场.匀强磁场的磁感应强度为B,匀强电场的电场强度为E.平板S上有可让粒子通过的狭缝P和记录粒子位置的胶片A1A2.平板S下方有磁感应强度为B0的匀强磁场.下列表述不正确的是( )
A.
质谱仪是分析同位素的重要工具
B.
速度选择器中的磁场方向垂直纸面向外
C.
能通过狭缝P的带电粒子的速率等于
D.
粒子打在胶片上的位置越靠近狭缝P,粒子的比荷越小
【单选题】生精小管的生精上皮由以下细胞构成
A.
支持细胞和间质细胞
B.
支持细胞和生精细胞
C.
间质细胞和生精细胞
D.
支持细胞和精原细胞
E.
支持细胞和精子细胞
【判断题】仲裁机构是否对争议案件有管辖权的条件之一是争议双方订立有仲裁协议()
A.
正确
B.
错误
【判断题】仲裁机构是否对争议案件有管辖权的条件是争议双方订立有仲裁协议。
A.
正确
B.
错误
【单选题】生精小管的生精上皮由以下细胞构成
A.
支持细胞和睾丸间质细胞
B.
支持细胞和生精细胞
C.
睾丸间质细胞和生精细胞
D.
支持细胞和精原细胞
E.
睾丸间质细胞和精原细胞
【判断题】仲裁机构是否对争议案件有管辖权的条件是争议双方订立有仲裁协议
A.
正确
B.
错误
【简答题】40本题的变量属于变量值变动不大的离散型变量,故采用单项式分组,结果见下表: 某生产车间50名工人日加工零件数(单位:个)如下: 116 121 124 129 139 106 117 130 122 125 107 131 125 117 122 133 126 122 118 108 110 118 123 126 133 134 127 12...
【判断题】仲裁机构是否拥有对争议案件的管辖权的条件取决于是否订有仲裁协议。
A.
正确
B.
错误
【单选题】单选题-具有内在活性的选择性β1受体阻断剂是
A.
普萘洛尔
B.
噻吗洛尔
C.
吲哚洛尔
D.
阿替洛尔
E.
醋丁洛尔
【判断题】仲裁机构是否对争议案件有管辖权的条件之一是争议双方订立有仲裁协议
A.
正确
B.
错误
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