“齐国君王齐桓公，任用丞相叫管仲，‘尊王攘夷’为口号，第一霸主逞威风”。该歌谣所反映的历史时期是（　　）

已知矩形ABCD的顶点都在半径为R的球O的球面上，AB=6，BC=2$\sqrt{3}$，棱锥O﹣ABCD的体积为8$\sqrt{3}$，则球O的表面积为（　　）

    Hi! I'm Linda. I am ____ English girl. Now I'm in Shanghai with my parents. There is a ____ store next to my house. ____ name is Xingxing Clothes Store. You can buy all kinds of ____ in it. They have sweaters at a very good ____. Do you need bags? They ____ great bags for 26yuan each. They have hats ____ red, black and yellow. They ____ have nice skirts for girls. For ____, they have shorts and sports socks. Do you ____ to come here? Let's have a look this afternoon.

分析“人的美德犹如名贵的香料，在烈火焚烧中会散发出最浓郁的芳香”此句的含义。

西班牙在美洲的主要黄金来源地是新格拉纳达。到1600年，从这里出口了400多万盎司的黄金。新格拉纳达的黄金产量逐步上升，到18世纪，其产量约为16世纪产量的三倍。这些黄金的流入直接导致西班牙