问题
填空题
Security is also a big concern as Bluetooth technology has an essence of______.
答案
参考答案：wireless networking
解析： 本题定位词是security，从而锁定Bluetooth Security部分。该部分第一段中提到：In any wireless networking setup，security is a concern…Bluetooth technology is no different—it’s wireless。 由此可知，蓝牙技术的安全问题源于它的无线网络连接的本质，故本题应填入wireless networking。