A：如果a3=b3，那么a=b
B：三角形的一个外角等于两个内角之和
C：相等的角是对顶角
D：内错角相等
2A（g）+B（g）⇌3C（g）+4D（g）的反应，在不同条件下的反应的速率最快的是（ ）
Susan is 14 years old and she is an American girl. She is one of my best friends. She is interested in Chinese and good at it. Every summer she travels with her parents. She believes（相信） that traveling is an important part in her life. She likes London best because it is both clean and beautiful. She knows that China is a large country with lots of interesting places. This July, her family are coming to China. I am very happy to know that they will first come to my city. They will stay here for three days. I will take them to visit the city. Then they will fly to Beijing. I am sure they will have a nice time in China.
Who
Susan is an ____ girl.
She is interested in Chinese and does ____ in it.
What
She ____ with her parents every summer.
Traveling is an important ____ in her life.
Where
She likes London ____ because London is both ____ and beautiful.
When
This ____, her family are coming to China.
She knows China is a large country with a lot of ____ places.
How long
They will stay here for three ____.
How
Then they will go to Beijing by ____.
中国精美的手工业产品大多来自于
— Mrs. White. She has lived in China for years. _____ Chinese is very good.
