皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
根据材料,回答题。 Will We Take Vacation in Spaces? When Mike Kelly first set out to build his own private space,ferry service, he figured his bread-and-butter business would be lofting Satellites into high-Earth orbit. Now he thinks he may have figured wrong. 'People were always asking me when they could go,' says Kelly, who runs Kelly Space Technology out of San Bernardino, California. 'I realized that real market is in space tourism. ' According to preliminary market surveys, there are 10,000 would-be-space-tourists willing to s, pend $ 1 million each to visit the final frontier. Space Adventure in Arlington, Virginia, has taken more than 130 deposits for a two-hour, $ 98,000 space tour tentatively (and somewhat du biously) set to occur by 2005. Gene Meyers of the Space Island Group says: 'Space is the next exotiC.vacation spot. ' This may all sound great, but there are a few hurdles. Putting a simple satellite into orbit with no oxygen, life support or return trip necessary already costs an astronomical $ 22,000/kg. And that doesn't include the cost of .insuring rich and possibly litigious passenger. John Pike of the Federation of American Scientists acerbieally suggests that the entire group of entrepreneurs trying to corner the space tourism market have between them 'just enough money to blow up one rock et. ' The U.S. space agency has plenty of money but zero interest in making space less expensive for the little guys. So the little guys are racing to do what the government has failed to do: design a reusable launch system that's inexpensive, safe and reliable. Kelly Spaee's prototype looks like a plane that has sprouted rocket engines. Rotary Rocket in Redwood City, California, has a booster with rotors make a helicopter-style. return.to Earth; Kistler Aerospace in Kirkland, Wash ington, is piecing together its versions from old Soviet engines, shuttle-style. thermal protection tiles and an' elaborate parachute system. The first passenger countdowns are still years away, but bureaucrats at the Federal Aviation Administration in Washington are already informally discussing fligh.t regulations. After all, you can't be too prepared for a trip to that galaxy far, far away.are plotting to build space hotels. Before the Russian space Mir came down, some people were talking about using it as a low-rent space hotel to reduce the cost. If a space hotel is finally built in space, and if you're thinking of staying in it, you may want to check the Michelin ratings before booking your- self a suite. Mike Kelly planned to turn his business of making bread and butter into a business that is engaged in space tourism. 查看材料
A.
Right
B.
Wrong
C.
Not mentioned
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【判断题】健美训练的最基本最重要的训练法则是“渐增超负荷法则”。
A.
正确
B.
错误
【判断题】一个抽象类不能包含有final方法。
A.
正确
B.
错误
【判断题】购车时,接国家规定缴纳的购置附加税属于汽车的无形损耗。
A.
正确
B.
错误
【简答题】若某个JAVA类包含了抽象方法,则该类必须被定义为( )类。而当一个类的类修饰符为( )时,说明该类不能被继承,即不能有子类。(填写英文单词)
【单选题】当共同运动已经完善时,可促进患者进行分离运动的最佳途径是
A.
对共同运动进行多次重复
B.
将共同运动分解
C.
在日常生活中锻炼
D.
健侧帮助患侧活动
E.
抑制共同运动的某些成分
【判断题】一个final类不能包含有抽象方法
A.
正确
B.
错误
【单选题】香港回归的具体时间是()。
A.
1996年7月1日
B.
1997年7月1日
C.
1998年7月1日
D.
1999年7月1日
【简答题】一个 类不能包含有抽象方法。
【单选题】接口的主要功能不包括 ( )
A.
不管类的层次,实现不相关的类有相同的行为
B.
说明多个类所需实现的方法
C.
可以通过它了解对象的交互界面,但必须了解对象所对应的类
D.
是一种含有抽象方法或常量的特殊抽象类
【单选题】江泽民指出,香港回归祖国是彪炳史册的千秋功业,香港同胞从此成为香港真正的主人香港历史,从此揭开新的篇章文中,从此具体指什么时间。
A.
1997年6月1日
B.
1997年7月1日
C.
1997年8月1日
D.
1997年9月1日
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题