四冲程的汽油机排气行程结束后，气体压力约为（） ["102～105KPa","105～125KPa","106～125KPa","107～125KPa"]
Which option describes the incorrect usage of the Label Distribution method？（） ["LDP is primarily used in internal networks of MPLS-VPN providers.","MP-BGP is used for label distribution for VPN customer routes.","Directed LDP is used for label distribution in L2-VPN Attachement Circuits.","MP-BGP is used for label distribution in MPLS Traffic Engineered networks."]
遗传学上将有亲缘关系个体间的交配称为回交。
半数致死计量浓度
WFQ？
自我表现
