某水果公司以2元/千克的成本购进10000千克柑橘，销售人员在销售过程中随机抽取柑橘进行“柑橘损坏率”统计，并绘制成如图所示的统计图，根据统计图提供的信息解决下面问题：

（1）柑橘损坏的概率估计值为____，柑橘完好的概率估计值为____；

（2）估计这批柑橘完好的质量为____千克．

如图，两幅图片中的情景应出现在哪两次战争期间（  ）

坐在清朝皇帝宝座上的侵略者
①鸦片战争②第二次鸦片战争 ③甲午中日战争 ④八国联军侵华战争

    My cousin Sandy is1English girl. Her2name is White. She is 12. The girl is3. In her room, her books and tape player4in the bookcase. Her pencil box is on the5. Her ruler is on the desk, too. And a set 6 keys are in her pencil box. A baseball is under the desk,7 it's not Sandy's. It's her brother8. Sandy has a computer. 9 on the table. There is a photo on the wall. Two girls are in the photo. Do you know10the two girls are? Well, they are Sandy's good friends, Mary and Anna.

若函数f（x）=$\sqrt{x^2-1}$+$\sqrt{a-x^2}$为偶函数且非奇函数，则实数a的取值范围为____