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仔细阅读2:'There's an old saying in the space world: amateurs talk about technology, professionals talk about insurance.' "There's an old saying in the space world: amateurs talk about technology, professionals talk about insurance." In an interview last year with The Economist, George Whitesides, chief executive of space-tourism firm Virgin Galactic, was placing his company in the latter category. But insurance will be cold comfort following the failure on October 31st of VSS Enterprise, resulting in the death of one pilot and the severe injury to another. On top of the tragic loss of life, the accident in California will cast a long shadow over the future of space tourism, even before it has properly begun. The notion of space tourism took hold in 2001 with a $20 million flight aboard a Russian spacecraft by Dennis Tito, a millionaire engineer with an adventurous streak. Just half a dozen holiday-makers have reached orbit since then, for similarly astronomical price tags. But more recently, companies have begun to plan more affordable "suborbital" flights-briefer ventures just to the edge of space's vast darkness. Virgin Galactic had, prior to this week's accident, seemed closest to starting regular flights. The company has already taken deposits from around 800 would be space tourists, including Stephen Hawking. After being dogged by technical delays for years, Sir Richard Branson, Virgin Galactic's founder, had recently suggested that a SpaceShipTwo craft would carry its first paying customers as soon as February 2015. That now seems an impossible timeline. In July, a sister craft of the crashed spaceplane was reported to be about half-finished. The other half will have to wait, as authorities of America's Federal Aviation Administration (FAA) and National Transportation Safety Board work out what went wrong. In the meantime, the entire space tourism industry will be on tenterhooks(坐立不安). The 2004 Commercial Space Launch Amendments Act, intended to encourage private space vehicles and services, prohibits the transportation secretary (and thereby the FAA) from regulating the design or operation of private spacecraft, unless they have resulted in a serious or fatal injury to crew or passengers. That means that the FAA could suspend Virgin Galactic's licence to fly. It could also insist on checking private manned spacecraft as thoroughly as it does commercial aircraft. While that may make subotbital travel safer, it would add significant cost and complexity to an emerging industry that has until now operated largely as the playground of billionaires and dreamy engineers. How Virgin Galactic, regulators and the public respond to this most recent tragedy will determine whether and how soon private space travel can transcend that playground. There is no doubt that spaceflight entails risks, and to pioneer a new mode of travel is to free those risks, and to reduce them with the benefit of hard-won experience. 61.What is said about the failure of VSS Enterprise? A.It may lead to the bankruptcy of Virgin Galactic. B.It has a strong negative impact on space tourism. C.It may discourage rich people from space travel. D.It has aroused public attention to safety issues. 62.What do we learn about the space-tourism firm Virgin Galactic? A.It has just built a craft for commercial flights. B.It has sent half a dozen passengers into space. C.It was about ready to start regular business. D.It is the first to launch "suborbital” flights. 63.What is the purpose of the 2004 Commercial Space Launch Amendments Ace?(商业空间的发射修正案) A.To ensure space travel safety. B.To limit the FAA's functions. C.To legalize private space exploration. D.Tp promote the space tourism industry. 64.What might the FAA do after the recent accident in California? A.Impose more rigid safety standards. B.Stop certifying new space-tourist agencies. C.Amend its 2004 Commercial Space Launch Amendments Act. D.Suspend Virgin Galactic's licence to take passengers into space. 65.What does the author think of private space travel? A.It is worth promoting despite the risks involved. B.It should not be confined to the rich only. C.It should be strictly regulated. D.It is too risky to carry on.
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【单选题】人体之气的运动称作
A.
气化
B.
气机
C.
气变
D.
气滞
【单选题】如图所示,一圆盘绕通过盘心O且垂直于盘面的水平轴转动,轴间摩擦不计。两颗质量相同、速度大小相等、方向相反且沿同一直线运动的子弹,同时射进圆盘并留在盘内,则两子弹射入后的瞬间,圆盘和子弹系统的角动量L及圆盘的角速度w 将会【图片】‍
A.
L 不变, w 增大 ‍
B.
L 不变, w 减小
C.
L 增大, w 减小
D.
L 增大, w 增大
【多选题】城镇污水处理厂污染物排放标准适用于()
A.
城镇污水处理厂出水
B.
江河、湖泊
C.
运河、渠道
D.
废气排放
【单选题】患者,女性,45岁。近1月余咳嗽,食欲差,四肢乏力,结核菌检查结果为阳性,诊断为肺结核。入院时面试晦暗,身形消瘦,其面容属于
A.
贫血面容
B.
慢性病容
C.
肝病病容
D.
腺样体面容
E.
急性病容
【单选题】如图所示,一圆盘绕通过盘心O且垂直于盘面的水平轴转动,轴间摩擦不计。两颗质量相同、速度大小相等、方向相反且沿同一直线运动的子弹,同时射进圆盘并留在盘内,则两子弹射入后 的瞬间 ,圆盘和子弹系统的角动量L及圆盘的角速度 将会( )。
A.
L不变, 增大
B.
L不变, 减小
C.
L增大, 减小
D.
L增大, 增大
【多选题】伪装的技巧中需要注意的是
A.
外形轮廓至关重要
B.
利用光影效果更好
C.
现地植被多加利用
D.
利用色彩图案伪装
【判断题】氧化反应是一类使底物增加氧或失去氢的反应,从而使底物中有关碳原子周围的电子云密度降低,即碳原子失去电子或氧化态升高。
A.
正确
B.
错误
【单选题】人体之气的运动称作
A.
气机
B.
气化
C.
升降出人
D.
气机调畅
E.
阴阳转化
【多选题】关于税收代位权和税收撤销权,下列说法正确的有()。
A.
均不能直接行使
B.
税收代位权针对的是纳税人积极行使权利的行为
C.
税收撤销权针对的是纳税人的消极行使债权的行为
D.
必须依法向人民法院提出申请,通过相应的诉讼程序进行
E.
纳税人都欠税
【简答题】人体之气的运动称作____,气的上升运动太过,称为____。
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