机械定额时间包括（）。 ["有效工作时间","辅助工作时间","不可避免的中断时间","降低负荷下的工作时间","不可避免的无负荷的工作时间"]
血凝素能水解细胞膜上各种多糖受体末端的唾液酸，促使流感病毒的释放
发电机同期并网有哪些基本条件？
Refer to the exhibit. Which statement is true about a voice VLAN？（） ["Physically the voice network and the data network are separate","The voice traffic will normally be on a different IP subnet than will the data traffic","End user intervention is necessary to place the phone into the proper VLAN","The same security policy should be implemented for both voice and data traffic","The data VLAN must be configured as the native VLAN"]
一个完整的胜任力模型体系，除了包括具体的胜任特征和定义外，还应包括（）等几个方面。 ["核心问题","水平分级","行为描述","行为样例"]
采用在产品按原材料费用计价法，产品（）费用全部由（）负担。
