【简答题】长期病理性饥饿情况下,能量主要来自机体本身的_________,故_______接近于0.80。
【判断题】2010年初,在俄罗斯倡导下,成立了俄罗斯、白俄罗斯、塔吉克斯坦三国关税同盟。( )
【单选题】Much to our delight, John was finally _____ to join in our adventurous travel to the South Pole. [ ]
【单选题】在旅游营销宏观环境中经济因素居民收入水平直接营销旅游者购买力,对旅游者购买力影响最直接的收入是( )
【单选题】____ the pressure from work, teachers have to deal with psychological problems caused by interpersonal relationship.
【简答题】(1)三个小朋友三分钟削三支铅笔,九个小朋友六分钟削几支铅笔? (2)三只猫三天吃三只老鼠,六只猫几天吃18只老鼠?