CH₃﹣C≡C﹣CH=CH₂分子中有____ 个碳原子共线，____ 个碳原子共面，最少有____ 个原子共面，最多有____ 个原子共面．

任务型阅读

My little dream of book

    I have always wanted to write． ____ When Harry Potter came out，I was so fascinated with it．In those books，every wonderful thing was created by ink on a page．

    The problem is that I am not a very good writer．Then I prepared a little black book and it looked very common． ____ It started as somewhere to write down all of the interesting experiences．When an idea came into my head，I would write them down．Sometimes the first idea was not such a good one，but it might lead to better ideas．I wrote down 10 ideas，no matter how bad they are． ____ ．After that I would develop it into a few pages．

    Now I bring the book everywhere with me． ____ ．It is full of colorful thoughts or what the world is like．the world is full of strange things．Every day，there is something special and unusual just waiting to be discovered．

    My book is amazing．1t lets me catch all of those small things and catch them before they can go away．So far I have written a great novel and some poems． ____ ！For me，this book is more than just words on paper．It is my special wealth．

A. It is more important to me than my mobile phone.

B. I fell in love with writing when I started reading.

C. However, it was a little book of dreams.

D. I never thought I would write poems.

E. Then I picked the best three ideas and wrote a short story.

商店同时以60元的价格卖出两件衣服，其中一件盈利25%，另一件亏损25%，则卖这两件衣服总的是（   ）

分式$\frac{x}{3y}$与$\frac{3x}{2y^2}$的最简公分母是（　　）