【多选题】Discuss with a partner: under which situation(s) do you need to write a notice to inform others about an event? Tick your choices.
B.
Inviting a friend to your house for a coffee
C.
Congratulating your best friend on his/her graduation
D.
Informing the participants about the time and place of a conference
E.
Changing the time and day of a lecture
F.
Announcing the exam timetable
【判断题】随意春芳歇,王孙自可留”一句表达了诗人对山中秋色的喜爱,也表达了他隐居山林、洁身自好的愿望。
【单选题】下列膜分离技术中,仅能截留菌体、大病毒、细胞、微粒的是:( )
【判断题】对汽油机的电控系统进行故障诊断时,首先应明确所诊断的故障是否与电子控制系统相关。
【简答题】Work with a partner to practice the dialogue. write down the phrases you can use when offering alternatives.
【简答题】简述改进的国际竞争性招标方式有哪些特点。