【简答题】若 cos θ 2 = 3 5 ,sin θ 2 =- 4 5 ,则角θ的终边落在第______象限.
【判断题】Mr. Keating expects the boys to make their lives extraordinary.
【单选题】. Beijing expects China’s rich civilizations to ________ the world with a happy surprise at the opening ceremony of the 2010 Shanghai EXPO.
【简答题】若sinθ?cosθ>0,且cosθ?tanθ<0,则角θ的终边落在第 ______象限.
【简答题】-50° 角 的终边落在第 _____ 象限