Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（） ["Voice gateway","Private branch exchange (PBX)","Advanced audio conferencing software","IP telephone"]
投资基金的特点不包括（）。 ["规模经营","集中投资","专家管理","服务专业化"]
对于位置精度要求较高的工件，不宜采用（）。 ["专用夹具","通用夹具","组合夹具","三爪长盘"]
By how much is a signal’s strength reduced when the signal passes through an object thatintroduces 3 dB of attenuation？（） ["1\/6","1\/4","1\/3","1\/2"]
按照（）不同，投资基金可以分为成长型基金和收入型基金。 ["是否可以赎回","组织形式","经营目标","投资对象"]
什么是商业银行的流动性风险？如何对商业银行进行流动性风险管理？
