唐明皇李隆基“以姚崇、宋璟为相，励精图治。至民夜不闭户，道不拾遗，遂达臻全盛。”这里的“明皇”所创造的治世是（    ）

在数轴上，大于﹣2且小于4的整数的和为____ ，积为____ 

大军将一支密度计分别放入两种不同的液体中，如图所示．若两种液体的密度分别ρ_甲、ρ_乙，静止时密度计所受浮力分别为F_甲、F_乙，则（　　）

如图，在半径为10cm的圆中作一个正六边形ABCDEF，试求此正六边形的面积．

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

    Today is Friday. Linda says to her aunt on the telephone. "Aunt Mary, I'm sorry. I can't go ____ your farm tomorrow. Let us meet next Sunday."

    Aunt Mary says, "Oh, I'm sorry to hear that. I have ____ new dog. It is two years old. You can play with it on my farm."

    Linda says, "What's ____ (it) name?"

    Aunt Mary says, "Wangwang."

    Linda says, "Is it brown?"

    Aunt Mary says, "No, it is black. You know, it's my favourite colour.

    Linda says, "Yes, I think Wangwang ____ I can be good friends. See you next Sunday."

    Aunt Mary says, "____ (see) you."