一个湖泊周围长1800米，沿湖泊周围每隔3米栽一棵柳树，每两棵柳树中间栽一棵桃树，沿湖周围栽了_1棵柳树和桃树_2棵．

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一个湖泊周围长1800米，沿湖泊周围每隔3米栽一棵柳树，每两棵柳树中间栽一棵桃树，沿湖周围栽了____ 棵柳树和桃树____ 棵．

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600,600

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Here is the bulletin board in Class 2. Some of the notes can be seen every day. Here are some notes before a holiday. Please read them and answer the following questions.

We want to say thanks to Miss Wang, our dear teacher. We couldn't have a wonderful English class without you. Class 2	I am thankful to Annie for lending me the pen. I'll remember to bring mine next time. Mary
The class meeting will be held this Thursday. The topic is “Thanks a lot.”Please get ready. Class 2	A thousand thanks to John . He always helps me clean the windows when I am busy. Julia
Many thanks to Jack for helping with my Chinese homework. Tom	I'm thankful to know that I have so many kind students. I love you all. Miss Wang

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