Refer to the exhibit. A customer indicates their teleworkers plan to use IP phones in their home offices. The IT department has surveyed the planned teleworkers, resulting in the user groupings shown in the exhibit. To provide the highest voice quality, the best recommendations to this customer are（）. ["Deploy all three groups with a QoS service policy, choosing the parameters for Traffic Shaping based on the average uplink speed across the three groups. ","Teleworkers in Groups A and B should inquire with their DSL providers for subscriptions with higher uplink bandwidths. ","Teleworkers in Group C should change their subscriptions to DSL for deployment consistency.","Teleworkers in Group A should upgrade their subscription to obtain static IP addresses ","Teleworkers in Group A should inquire with their DSL providers for subscriptions with higher downlink bandwidths."]
水利建设市场主体不良行为记录的公告应坚持（）原则 ["准确、公开、及时","公平、公正、客观","准确、及时、客观","准确、公正、客观"]
按GB5071-1996《液压电梯》规定，限速切断阀的动作速度应小于轿厢下行额定速度υd的倍，但不得大于（）（用米每秒）表示。 ["1.25；υd+0.3","1.25；υd+0.5","1.4；υd+0.5","1.5；υd+0.3"]
管片拼装控制的具体内容包含螺栓紧固扭矩和（）。 ["管片漏水","密封条压缩量","真圆度","管片裂缝"]
Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems？（） [" PIN photodiodes"," zero-chirped lasers"," Erbium-doped fiber amplifiers"," dispersion compensating fiber"," dispersion compensating Bragg grating"]
描写以黄昏、黑夜为代表的“时间意象”和以墓地、古宅为代表的“空间意象”的散文集是《》。
