【单选题】设A、B和C是3个事件,且A和B相互独立, B和C相互独立,则AUB与C相互独立的充要条件是()。
【单选题】设 为三个随机事件,且 与 相互独立, 与 相互独立,则 与 相立的充分必要条件是( ).
【单选题】实现( )是中华民族近代以来最伟大的梦想,凝聚了几代中国人的夙愿。
【判断题】Sun-hee asks a woman for direction.
【单选题】Sun-hee’s co-worker asks her to .
【单选题】近代以来,中华民族最伟大的梦想是____
【单选题】What’s the story? Watch the video and check the sentences that are true ( T ) . Video Track 1-5-4.wmv 1. Sun-hee and Tara find a note from Claudia. 2. Claudia wants Sun-hee and Tara to meet her at the...
【单选题】Sun-hee and her cousin plan to meet at -----
【简答题】What’s the story? Watch the video. Check (√) the sentences that are true. Then correct the false sentences. Video Track 1-1-3.wmv 1 Sun-hee makes plans to meet her cousin Jung-hoon at the bus station ...