流动离子炉
《铁路旅客运输规程》行李、包裹的运到期限以（）计算。 ["乘车日期","运价里程","开始购票日期","终到日期"]
位错
点缺陷
Spanning Tree Protocol IEEE 802.1s defines the ability to deploy which of these？（） [" one global STP instance for all VLANs"," one STP instance for each VLAN"," one STP instance per set of VLANs"," one STP instance per set of bridge"]
气泡矿化
