《洁净区工作服管理制度》规定，洁净区工作服（）清洗一次。 每班。 每天。 每周。 每月。
从内部报酬率的基本计算公式看，当内部报酬率K＝0时，（） A。 B。 C。 D。
简述结核的特征及意义。
《安全生产法》对从业人员在作业过程中的有关安全义务是如何规定的？
Refer to the exhibit. VTP has been enabled on the trunk links between all switches within the TEST domain. An administrator has recently enabled VTP pruning. Port 1 on Switch 1 and port 2 on Switch 4 are assigned to VLAN 2. A broadcast is sent from the host connected to Switch 1. Where will the broadcast propagate?（） Every switch in the network receives the broadcast and will forward it out all ports.。 Every switch in the network receives the broadcast，but only Switch 4 will forward it out port 2.。 Switches 1，2，and 4 will receive the broadcast，but only Switch 4 will forward it out port 2.。 Only Switch 4 will receive the broadcast and will forward it out port 2.。
网络型文化的特征是（）
