“今我朝罢丞相，设五府、六部……”这一史实最早发生在（      ）

根据短文内容，选择正确答案。
A
    One day, Mr. and Mrs. White went shopping by car. They stopped their car near a store. They bought a lot of things and they wanted to put them in their car. But Mr. White couldn't open the door of the car. “Let's ask a policeman for help.” said Mrs. White. They asked a policeman to help them. The policeman was very friendly to help them open the door of the car. Just then a man came up and shouted, “What are you doing with my car?” Mr. and Mrs. White took a look at the number of the car. It was not their car.

△ABC的内角A，B，C的对边分别为a，b，c，已知sinB+sinA（sinC﹣cosC）=0，a=2，c= $\sqrt{2}$ ，则C=（　　）

放大镜在我们日常生活中有着很广泛的应用，下列关于放大镜的说法中正确的是（  ）

在横线上填上“＞”、“＜”、“=”．