问题：
[单选题]（）is a space system using one or more artificial earth satellites.
A、Satellite network
B、Satellite link
C、GMDSS
D、Satellite system
参考答案：
D
相关内容
- ● ●More and more peron who ue the Intemet had created a (74) or web baed diary.
- ● Which of thee technologie i characterized a being a multipoint Layer 2 VPN that connect two or more cutomer device uing Ethernet bridging technique?（）
- ● Where the contract i to inure the ubject-matter at and from，or from one place to another or other，the policy i called a（）.
- ● When rigging a boun’ chair，a tail block or lizard i ued to（）.
- ● A feeler or thermal bulb i ued for the expanion valve to （）.
- ● A poition that i obtained by uing two or more interecting line of poition taken at nearly the ame time，i a(n) （）.
- ● A poition that i obtained by uing two or more interecting line of poition，taken at nearly the ame time，i a(n)（）.
- ● A ound which i capable of ditinguihing one word or one hape of a word from another in a language i a__________．
- ● One of the greatet feature of a home ______ i the ability to hare one Internet connection imultaneouly over two or more computer.
- ● Viru Security Software i deigned to detect, eliminate or quarantine computer virue before they are able to harm a computer or erver networked ytem.
- ● Air or noncondenable ga i removed from a refrigeration ytem by a （）
- ● （）an order for one thouand ton or more we grant a pecial dicount of 10%.
