【判断题】3DES基于DES,对1块数据用3个不同密钥加密3次。
【简答题】Both of the boys are good at singing.(翻译)
【多选题】净需求如果是负值,需要采取( )等方式解决。
【单选题】Joe and Peter are brothers. ______ of the boys are good at Maths.
【判断题】理想的形式是主观的,但理想的内容是客观的。()
【单选题】Can I make an _________ with Doctor Wang?
【单选题】. Doctor Wang _____ at seven o’clock for the conference, but she didn’t turn up.