Which two statements are true about Voice over IP （VoIP） packet delivery in a digital infrastructure？ （） [" Packets can arrive out of order."," Packets must take the same path to the destination."," Once packets are received at the destination router， the router performs sampling to ensure the quality of the voice traffic."," Packets can experience varying delays across the network."," Packets containing voice samples are sequentially numbered by default， allowing for reordering upon arrival at the terminal router along the path."]
论述社会保险与商业保险的区别。
简述屈原作品的艺术特色。
影响供给的因素主要有：（）。 ["产品的成本","生产厂家数量","商品的价格","相关商品的价格","政府税收政策"]
说明句中的词类活用现象
从左右，皆肘之。
纠正下面句子中不符合规范的词语：
①这件事如何处理，你可以筹画好了再行动。
②那篇通讯明天马上见报，请主编写一个案语。
③展览会上那些磁器都非常珍贵，寻常百姓可买不起。
④他受这个案子牵联，今年提升肯定没有希望了。
⑤有些人就是那样，信口开合，说话从来不负责。
