能“劫持”别国卫星,最主要的依据是()。A．因为控制卫星的微波是开放的B．一套卫星发射系统只需两只手提箱就可以装下，且便于组装C．许多大学的卫星天线就可截取卫星信号D．单从技术上讲，“俘虏”卫星并非不可能-题目网

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共用题干Mind Those Manners on the Subway
So,there you are,just sitting there in the subway car,enjoying that book you just bought. _________(46) Or, the person sitting next to you takes out a nail clipper（指甲刀）and begins cutting his or her nails.
Annoying?Many of us have to spend some time every day on public transportation_______
(47)So,to make the trip more pleasant,we suggest the following:
Let passengers get off the bus or subway car before you can get on.________(48)
Stand away from the doors when they are closing
Don't talk loudly on a bus or subway.Chatting loudly with your friends can be annoying to others.________(49)
Don't think your bags and suitcases（手提箱）deserve a seat of their own.
Use a tissue whenever you cough or sneeze（打喷嚏）.An uncovered sneeze can spread germs（细菌）,especially in crowded places.
Don't cut your nails or pick your nose on public transportation.
Don't read over other people's shoulder._________(50)It can make people uncomfortable. They might think you're too stingy（小气的）even to buy a newspaper. Or they might think you're judging their behavior. ________（50）A:Don't eat food in your car.B:Don't shout into your mobile phone on a bus or subway.C:We all know that some behaviors are simply unacceptable.D:Many people do this on subways,but it's really annoying.E:Getting off and on in an orderly manner can save time for all.F:Suddenly,you feel someone leaning over your shoulder reading along with you.
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卫星通信系统由()两部分组成。
A.通信卫星天线系统
B.建在地球站上的无线电接收和发射设备
C.卫星上的位置控制系统
D.安装在卫星上的转发器

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能“劫持”别国卫星,最主要的依据是()。
A．因为控制卫星的微波是开放的
B．一套卫星发射系统只需两只手提箱就可以装下，且便于组装
C．许多大学的卫星天线就可截取卫星信号
D．单从技术上讲，“俘虏”卫星并非不可能

相关热点：手提箱卫星天线

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最近更新文章

能“劫持”别国卫星,最主要的依据是()。A．因为控制卫星的微波是开放的B．一套卫星发射系统只需两只手提箱就可以装下，且便于组装C．许多大学的卫星天线就可截取卫星信号D．单从技术上讲，“俘虏”卫星并非不可能

相关热点： 手提箱 卫星天线

相关问题推荐

最新解决用户提交的题

最近更新文章

能“劫持”别国卫星,最主要的依据是()。
A．因为控制卫星的微波是开放的
B．一套卫星发射系统只需两只手提箱就可以装下，且便于组装
C．许多大学的卫星天线就可截取卫星信号
D．单从技术上讲，“俘虏”卫星并非不可能

相关热点：手提箱卫星天线