问题
填空题
一个梯形的上下底之和是2.8米，高是1.5米，面积是______．
答案
2.8×1.5÷2
=4.2÷2
=2.1（平方米）
答：面积是2.1平方米．
故答案为：2.1平方米．
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一个梯形的上下底之和是2.8米，高是1.5米，面积是______．
2.8×1.5÷2
=4.2÷2
=2.1（平方米）
答：面积是2.1平方米．
故答案为：2.1平方米．
| 根据所给的首字母，英语释义和中文意思完成下列各句。 |
| 1. They (建造) many buildings last year. 2. I remember all the new words. I have a very good m_______. 3. There's a box of (火柴) on the table. 4. It is d________ to play with fire. 5. How many ________ (钢琴) are there in your school? 6. I was very happy because I h from my best friend. 7. He is interested in g . (地理学) 8. The old man _________(刷) his dog's fur every day. 9. Listen! There is someone _________ (敲) at the door. 10. A fox (狐狸) can't h_________ its tail. |