问题
填空题
一个长方形长5分米,宽3分米,以长为轴将长方形旋转一周,长方形的长划过的面积是( )平方分米。
答案
94.2
一个长方形长5分米,宽3分米,以长为轴将长方形旋转一周,长方形的长划过的面积是( )平方分米。
94.2
短文改错。 | |
When my daughter Kate and his friends wanted to make a wooden box and sell them, I was glad that they decided to earn money instead of ask their parents for it, so I agreed to lend them hand. I gave them many carpentry (木工的) lesson, and they all seemed capable (有能力的) and carefully with my tools. Because they worked behind a garage, the house is quieter than it used to be. They were learning how to use money in a usefully way, and I could tell that they felt be proud of themselves. | 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |