（） is a collection of web pages connected together with （） . Each document or page has a unique address that allows you to find it among the millions of other documents on the Web. The address is called a （） (URL) or sometimes a Uniform Resource Indicator (URL). When you chose a new link by clicking on it or by typing it into the address field your （） sends a request for that document and displays it on the screen. That link can be to a different section of the current document, another document on the same website as the original or on another website anywhere in the world. Web pages are designed using （） or HTML.
（） is a collection.
If phone calls and web pages can be beamed through the air to portable devices, then why not electrical power, too It is a question many consumers and device manufacturers have been asking themselves for some time. But to seasoned observers of the electronics industry, the promise of wireless recharging sounds depressingly familiar. In 2004 Splashpower, a British technology firm, was citing “very strong” interest from consumer-electronics firms for its wireless charging pad. Based on the principle of electromagnetic induction (EMI) that Faraday had discovered in the 19th century, the company’s “Splashpad” contained a coil that generated a magnetic field when a current flowed through it. When a mobile device containing a corresponding coil was brought near the pad, the process was reversed as the magnetic field generated a current in the second coil, charging the device’ s battery without the use of wires. Unfortunately, although Faraday’s
A. Wireless recharging is too wonderful to be true.
B. Wireless recharging is consistent with the laws of nature.
C. Wireless recharging will definitely come true finally.
D. Wireless recharging will surely enter the mainstream in the end.
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