【简答题】技术方案不确定性因素产生的原因有( )。
【单选题】近代中国首先喊出"振兴中华"口号的是( )
【单选题】He spends all his free time _______ computer games. [ ]
【单选题】It is playing computer games _______ he spends so much time that he fails all the exams
【单选题】He is a (an) _____ grandfather. He often spends all his free time with his grandson. [ ]
【单选题】近代中国首先喊出“振兴中华”口号的是( )