A service that uses existing phone lines to provide high-speed connections is called _______.
A: WWAN
B: 3G/4G
C: Voiceband
D: DSL
A: WWAN
B: 3G/4G
C: Voiceband
D: DSL
D
举一反三
- _______ uses standard telephone lines to provide high-speed connections. A: Cellular B: Satellite C: Cable D: DSL
- The less expensive option of constructing special tracks for high-speed train is utilizing __________ . A: dedicated lines B: existing lines C: specail lines D: continuous welded rails
- Words and phrases that provide connections and link ideas together are called ___.
- 3G、4G中的字母G代表什么? .
- in japan the is the first network of high speed railway lines in the world
内容
- 0
The high speed rail service are available in the following cities EXCEPT_________.
- 1
第二次输出结果为 ______。 A: 7 4G 丙 E B: 5 3G 丙 E 乙 C: 7 3G 丙 E 乙 D: 3 G 丙乙甲
- 2
_____ ports provide high-speed connections that can connect up to seven separate devices connected one to another. A: MIDI B: Thunderbolt C: eSATA D: Ethernet
- 3
4G is characterized by high speed of data transfer and improved quality of sound.
- 4
低盐饮食食盐用量不超过（ ）g。 A: 5g B: 4g C: 3g D: 2g