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时区(Time Zone)是地球上的区域使用同一个时间定义。1884年在华盛顿召开国际经度会议时,为了克服时间上的混乱,规定将全球划分为()个时区
A.12
B.24
C.36
D.48
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24
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A.12
B.24
C.36
D.48
24
As you know, the turning of the earth makes the sun and the stars seem to move across the sky. Daylight, of course,【21】, when the sun rises in the east and when the sun is high【22】the sky, between these two positions, half of the daylight hours have been spent.
Therefore, by noticing【23】the sun stood in the sky, early man know they could tell the time of the day, At night the motion of the stars【24】the same purpose. The important thing in keeping time is to know the exact moment of【25】. For each of us, wherever we are, noon is when the sun is directly overhead. Think of an imaginary line【26】the sky, stretching from the north point of your horizon just to the south point.
When the sun cross your meridian (子午线), it is noon for you. When the sun still【27】of this line, or the meridian, it is morning. After the sun has crossed this line, it is【28】.
The Latin word for "midday" is "deridian",【29】which comes our word meridian. So AM is an abbreviation (缩写词) for "ante meridean", or before midday, and PM for after midday. Each or the world's time zones (时区) is about fifteen degrees wide in longitude (经度), which is about the distance the sun moves through tile sky in all hour.【30】lives in the same time zone observes noon at the same moment. In this way, the time is different by one hour as you move through each time zone.
(61)
A.comes
B.begins
C.appears
D.shines
A.when a new Master assumes command
B.daily,at 0800 local zone time
C.weekly,before 2400 Saturday
D.immediately after assuming the watch
A.返回系统当前时间戳对应的易读字符串表示
B.返回系统当前时间戳对应的structtime对象
C.返回系统当前时间戳对应的本地时间的structtime对象,本地之间经过时区转换
D.返回系统当前的时间戳
A.地球绕太阳公转轨道一年之内形成的路线
B.地球及其它行星一年之内绕太阳公转共同形成的路线
C.在地球上观察到的太阳一年之内在恒星间运行的路线
D.在地球上观察到的太阳表面出现的特殊区域
A.世界上实际使用法定分区,北京、西安、乌鲁木齐都属于东8区
B. 根据所在经度推算,北京、西安、乌鲁木齐分别处于东8区、东7区和东6区
C. 根据所在经度推算,北京、西安、乌鲁木齐分别处于西8区、西7区和西6区
D. 根据所在经度推算,北京、西安、乌鲁木齐分别处于东6区、东7区和东8区
A.SGSN Change(SGSN:Service GPRS Support Node)
B.MS Time Zone Change(MS:Mobile Station)
C.RAT Change(RAT:Radio Access Type)
D.SGSN PLMN ID Change(PLMN:Public Land Mobile Network)
E.QoS Negotiated Change
A.北雁南飞,活跃在田间草际的昆虫也都
B.在地球上温带和亚热带区域里,年年如是
C.十四五岁的少年,恰如试飞的雏鹰,当有【目空一切】的豪情壮志
D.我们做事要光明磊落,不要【偷偷摸摸】的,让别人看不起