一球鞋厂，现打折促销卖出330双球鞋，比上个月多卖10%，设上个月卖出 $x$ 双，列出方程（   ）

小李同学在百米赛跑时，在前8s内加速跑完了36m，接着保持8m/s的速度跑完全程，则他百米赛跑的成绩是____ s．百米赛跑的平均速度　____ m/s．春天到了，学校院内的桃花盛开了，同学们在很远的地方就能闻到花香，这是____ 现象，这个现象说明了____ ．

Mike: Hi, Cindy! How are you?

Cindy: Hello, Mike. I am fine, thanks.

Mike: Cindy, I 1 a photo. Is it yours?

Cindy: Yes. It is 2. Thank you, Mike.

Mike: You are welcome. 3 they in this picture?

Cindy: They are my grandparents.

Mike:4 this man your father?

Cindy: No. He is my father's brother. He is my 5.

Mike: The girl is nice. Is 6 your sister?

Cindy: No. She is my friend, Lucy. She is in China now.

Mike: What is her 7? I want to know something 8China.

Cindy: It is lucy226@qq.com. You can 9 Lucy at 536-85472, too.

Mike: Thanks. Have a 10 day!

Cindy: You, too.

这次战役是世界史上著名的战役，它扭转了整个战争的局势，是北美英属殖民地十三州独立战争的转折点。它不仅增强了美国人民争取胜利的信心，也为美国人民抗英斗争创造了有利的国际条件。这次战役是（　　）