【单选题】()与光纤通信、卫星通信一起被称为现代通信传输的三大支柱。
【单选题】主要传输手段的发展现状和趋势有电缆、微波中继通信、光纤通信、卫星通信和( )
【单选题】题干: 须给他船让路的船舶包括: I、规则15条定义的交叉相遇局面中的让路船; II、规则14条定义的对遇局面中的机动船; III、规则18条规定的让路船; IV、规则19条规定的听到他船一长两短声号的机动船; V、规则13条定义的追越局面中的追越船
【单选题】()通信主要有包括短波通信、超短波通信、微波通信和蜂窝式移动通信。
【单选题】Which is not the item that Will likes?
C.
listening to jazz music
【多选题】华为云计算FusionCloud品牌包括哪些解决方案?(多选)
【单选题】下列说法中正确的是 [ ]
B.
光的频率高于微波的频率,故光纤通信的传输能力大于微波通信的传输能力
C.
通常的数字信号只包含两种不同状态,形式简单,所以抗干扰能力差
D.
用于广播、电视和移动电话频率范围的那部分波叫做电磁波
【单选题】It can be inferred from the news item that______.
A.
the whole bill will not go into effect immediately
B.
the bill will cost a great sum of money
C.
people from all walks of life agree with the bill
D.
children under 26 can stay on his parents' health insurance
【单选题】The nurse is reviewing a nutritional plan of care with a pregnant client and is identifying the food items highest in folic acid. The nurse determines that the client understands the foods that supply...
D.
Leafy green vegetables