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螺旋模型是一种 (3) 的开发模犁，适合于大型软件的开发。
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Bluetooth is a universal radio interface in the (71) frequency hand that enables portable electronic devices to connect and communicate wirelessly via short-range, ad hoc networks. Each unit can simultaneously communicate with up to (72) other units per piconet. Moreover, each unit can simultaneously (73) to several piconets. Eliminates the need for wires, cables and connectors for and between cordless or mobile phones, modems, headsets, PDAs, Computers, printers, projectors, local area networks, and so on, and paves the way for new and completely different devices and applications. Technology Characteristics (74) symbol rate exploits maximum available (75) bandwidth。
穆罕德逝世后伊斯兰教内部分别是逊尼派和什叶派。逊尼派是少数派，什叶派是多数派。( )P94
Wood will burst into flames at 300 degrees Fahrenheit.
净土宗以往生西方极乐世界为宗旨，是最简便的法门。( )P83
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