Which three call information items does AirMagnet VoFi Analyzer provide? （） ["the codec used by the calling phone","approximate length of the call in minutes","MOS values throughout the duration of the call","802.11e access category overruns","co-channel interference percentage during the call"]
互证
商业银行能够把资金从盈余者手里转移到短缺者手中，使闲置资金得到充分的利用，是商业银行的（）功能。
Photoshop中，图像必须是何种模式，才可转换为位图模式：（） ["RGB","灰度","多通道","索引颜色"]
影响专业技术人员心理健康的外部因素有：社会变革、角色压力和（） ["行为模式","个人期望","生活事件"]
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