- Do you know Victory Day in China?

- Yes, it's _______ September 3rd _______ each year. It tells the world that Chinese people love peace and hate wars. Chinese people will never forget the history.

《游园不值》中，诗人是抓住哪些景物来表现春天的？

对照下列“大洲轮廓图”，判断下列说法不正确的是（　　）

在△ABC中，内角A，B，C所对的边分别是a，b，c，已知△ABC的面积S=$\frac{1}{2}$$a^2-{\left(b-c\right)}^2$．

（Ⅰ）求sinA与cosA的值；

（Ⅱ）设$\lambda =\frac{b}{a}$，若tanC=2，求λ的值．