【Abstract】The paper analyzes Obama’s speech in White House Correspondents’ Dinner in 2016 and illustrates the humor ......

Dear Sir or Madam，　　I’m Li Hua， a Chinese student studying in New Zealand. I’m writing to ask for information about Ne......

Two characteristics of traffic flows make the vehicle departure headways in Beijing, China different from that in Atlant......

本文首次研究服务员具有多重休假规则的成批到达Mx/G/1排队系统的输出过程.应用更新过程理论、拉普拉斯-司梯阶变换和本文提出的直......