Which country is the author from?
A. Canada
B. The United States
C. The United Kingdom
D. China
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What is the author's impresion on US's taxidrivers?
A. Friendly
B. Rude and careless
C. considerate
D. nice
Which one didn't the British taxi driver do?
A. The driver gave us a friendly smile as greeted us with a "hallo".
B. He opened the back door for us to step into the back of his spacious taxi.
C. The driver talked with us on the way to the hotel.
D. At the hotel, the driver walked our luaggage to the front door.
According to the author, which word can not be used to describe the British driver?
A. Friendly
B. They were like old friends.
C. professional 专业的
D. rude (粗鲁的) and careless (漠不关心的)
以下哪种协议是工作在5.8GHz频段?
A. IEEE802.11a
B. IEEE802.11b
C. IEEE802.11g
D. 以上都不是