Broadband technology is seen as the key to the new digital economy. In this r

游客2024-01-16 22

问题 Broadband technology is seen as the key to the new digital economy. In this rapidly changing world, media and technology information can be sent via phone calls and downloads like music, graphics, business information or films. The simpler the information, the smaller the package and the narrower the bandwidth needed to deliver it.
Broadband is used for high speed Internet connections at a fixed monthly rate. It turns an existing telephone line into a high speed digital line capable of carrying data up to 40 times conventional modem speeds. Any download is available at the click of a mouse—there is no dial-up as there is with standard Internet Service Providers. For home owners and families there are many advantages. One of the most important is simultaneous(同时的)access to both telephone lines and the Internet. No queues and no delay. For businesses, broadband can improve customer relations and provide direct access to corporate e-mails and databases. Entire operations can go online. [br] The function that broadband technology has on the new digital economy is______.

选项 A、further
B、critical
C、costly
D、global

答案 B

解析逻辑推理题。从文中Broadband technology is seen as the key to the new digital economy(宽带技术被看做新数字经济的关键所在)可推断出，宽带技术在新数字经济中发挥了至关重要的作用。

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