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【单选题】
Television broadcasts are 71 to an area that is within the 72 of the sending station or its relay(中转站).73 television relays are often placed on hills and mountains so that they can 74a wider region, they still can not cover more [and than one from the hilltop 75a clear day.However, the rays also go out into the atmosphere, 76there is a relay station on a satellite that 77 around the earth, it can send the pictures to any point on the earth from which the satellite is 78 Three satellites 79 . turning around over the equator(赤道)send any television program to any part of the earth.80 makes it possible for world 81of newspapers to give-the news in all countries at the same time.82 it may be possible for a subscriber (订户)to a televised news-paper to 83 a button and see a newspaper page 84 his television screen. He could also decide when he wants the page 85 , 86 , by dialing different such as87 on a telephone dial, he could choose the language or the edition of the paper hewants to read. It seems strange to think that, even today, methods of the 88 are not entire ly useless. For example, sometimes89agencies which use radio and Telstar also use pigeons to 90 messages between offices in large cities because the pigeons are not bothered by traffic problems.根据以上内容,回答题。 材料题请点击右侧查看材料问题 查看材料
A.
prohibited
B.
bounded
C.
limited
D.
shifted
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【判断题】职工因工致残被鉴定为一至四级的,应当退出生产、工作岗位,终止劳动关系,发给工伤伤残抚恤证件。
A.
正确
B.
错误
【简答题】请编制程序,其功能是:内存中连续存放着20个无符号字节数序列,请将它们排成升序(从小到大)。 例如: 内存中有01H,04H,02H…(假设后17个字节均大与04H) 结果为 01H,02H,04H…(后跟17个字节,按从小到大的顺序排列) 部分程序已给出,其中原始数据由过程LOAD从文件INPUT1.DAT中读入SOURCE开始的内存单元中。运算结果要求从RESULT开始存放,由过程SAVE保存...
【单选题】材质编辑器的默认快捷方式为( )
A.
V
B.
G
C.
Y
D.
M
【简答题】计算机网络案例 某一网络地址 202.165.26.0 中有 5 台主机 A 、 B 、 C 、 D 、 E , 它们的 I P 地址及子网掩码如下 表所示 。 ( 全 0 全 1 不用 ) 主机 I P 地址 子网掩码 A 202.165.26.45 255.255.255.240 B 202.165.26.115 255.255.255.240 C 202.165.26.145 255.255...
【简答题】请编制程序,其功能是:剔除10个8位无符号二进制数据中的最大值和最小值,然后按四舍五入原则计算其余8个数据的算术平均值,将剔除最大值和最小值之后的8个数据依次存入指定的内存区域中,并在其后存放平均值。 例如: 内存中有:01H,05H,04H,00H,07H,09H,02H,06H,08H,03H 结果为: 01H,05H,04H,07H,02H,06H,08H,03H,05H 部分程序已给出,其...
【简答题】IP地址的主机位全为0是 [填空(1)] ;IP地址的主机位全为1是 [填空(2)]A. 网络地址B. 广播地址
【多选题】下述灯具属于车外信号指示装置的是()
A.
转向灯
B.
制动灯
C.
位置灯
D.
牌照灯
【判断题】指示灯属于信号电器。
A.
正确
B.
错误
【单选题】职工因工致残被鉴定为(),应当退出生产、工作岗位、终止劳动关系,发给工伤伤残抚恤证件。
A.
一至三级
B.
一至四级
C.
八至十级
D.
七至十级
【单选题】一个IP地址,如果主机位全为0,则该地址是该网络的( )
A.
网络地址
B.
组播地址
C.
广播地址
D.
子网掩码
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