渠化工程规划的方法
Which two statements are true about voice VLANs？（） Voice VLANs are only used when connecting an IP phone and a host to distinct switch ports。 Access ports that are configured with voice VLANs will always trust the CoS that is received from IP phones。 Access ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phone。 Voice VLANs are configured using the switchport voice vlan vlan-ID interface configuration command。 Voice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the port。 Enabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS marking。
邮政企业对哪些经营项目提供邮政普遍服务？
预制阳台节点浇筑的混凝土强度达到（）时，方可拆除预制阳台底部的支撑体系。 70%。 80%。 90%。 100%。
美的符号性
某施工项目，工期为200天，日基本工资为20元/工日，日工资性补助为2/工日，日生产工人辅助性工资为10元/工日，日职工福利为1元/工日，日生产工人劳动保护费为2元/工日，参加该项目施工的生产工人为150人，则该施工项目直接工程费中的人工费为（）万元。
