When determining a customer’s technical requirements for a Cisco Unified Communications solution， which important tool can be used to determine the bandwidth used by different codecs with various protocols over different media？（） ["Network Codec Aggregator Tool","Bandwidth Estimator Tool","Unified Communication Bandwidth Tool","Voice Bandwidth Calculator","Voice Codec Bandwidth Calculator"]
广播电视节目被纳入电台。电视台节目制作和播出轨道的前提是拥有（） ["节目选题计划","节目代码","节目制作计划","节目经费"]
What is required to enable fragmentation of large FTP packets when voice quality on the network is affected by FTP transfers?（） [" Configure TCP header compression on interface"," Configure MPL on the Frame Relay interfaces"," Configure FRF 12 fragmentation on the Frame Relay interfaces"," Fragmentation is not supported with service internetworking"]
套利组合要满足的条件有（）。 ["套利组合要求投资者不追加资金","套利组合对任何因素的敏感度为零","套利组合对任何因素的敏感度大于零","套利组合的预期收益率应大于零","套利组合的预期收益率应为零"]
我国画家杨之光在1954年所做的一幅宣传画《一辈子第一回》，画中老人手捧着一张崭新的选票，满脸露出无比的喜悦。此宣传画从一个侧面表明了我国正在逐步形成（）。 ["人民代表大会制度","民族区域自治制度","政治协商制度","基层村民自治制度"]
再结晶织构
