题目内容

Telephony, also known as Internet telephony, is the VoIP application that uses the Internet rather than traditional telephone lines to support voice communication.

A. 对
B. 错

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Skype provides audio and video service that requires the installation of special hardware and software.

A. 对
B. 错

Unmanned aerial vehicles (UAV) are too expensive for anything but military budgets.

A. 对
B. 错

请将下列各朝代与扬州盐业发展的时期对应连线。

扬州晚清盐商最大的豪华住宅是_____________盐商住宅。