conference officer和conference organisor的意思和区别?如题

conference officer和conference organisor的意思和区别?如题 conference 和 convention 区别 conference conference conference conference conference Officer 和 Official的区别? Officer 和 Official的区别? police officer和policeman一个意思吧 officer 和official有什么不同? 请问officer和official的区别 executive和officer哪个职位高 请问meeting 和conference的区别 找错并改正 Does he a police officer? A.Does B.a C.police D.officer global youth leadership conference 和global young leaders conference有什么不同啊?哪个更好? The c( ) officer wanted my passport 中间怎么填 former和previous officer和official这两族词语的区别