【单选题】Which is not needed to be provided at the check-in counter?
【单选题】—Could you please tell me ? —He is twenty.
【单选题】Of the following which one is not needed in a lifeboat?
【单选题】Which one is not needed in applying for a job?
【简答题】液压支架按控制方式分为液压手动控制支架和( )支架。
【单选题】my baseball? It’s under the chair.
【判断题】The fact that people are willing to pay much more for a diamond, which is not needed for survival, than they are willing to pay for a cup of water, which is needed for survival, is an example of irrat...