Bluetooth is a universal radio interface in the 2.45GHz frequency band that enables portable electronic devices to connect and communicate wirelessly via short-range, ad hoc networks. Each unit can simultaneously communicate with up to sever other units per piconet. Moreover, each unit can simultaneously belong to several piconets.
Afternoon was Mrs. Conroy's favorite time of day. After a hard day at work, her eyes were tired and her feet hurt. She enjoyed the nice long nap she took on the bus. Mrs. Conroy had made friends with the bus driver, Mr. Angstrom. He always woke her up before her stop. She usually felt fresh as a daisy<注1> when she got off the bus.
Mr. President, Ladies and Gentlemen,Good afternoon!Before I introduce our cultural programs, I want to tell you one thing first about 2008. You’re going to have a great time in Beijing.China has its own sport legends. Back to Song Dynasty, about the 11th century, people started to play a game called Cuju, which is regarded as the origin of ancient football. The game was very popular and women were also participating. Now, you will understand why our women football team is so good ……
