问题
解答题
王叔叔骑自行车从甲地到乙地，如果每小时行12千米，5小时到达，如果想提前1小时到达，每小时需要行多少千米？
答案
12×5÷（5-1）
=60÷4，
=15（千米）．
答：每小时需要行15千米．
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王叔叔骑自行车从甲地到乙地，如果每小时行12千米，5小时到达，如果想提前1小时到达，每小时需要行多少千米？
12×5÷（5-1）
=60÷4，
=15（千米）．
答：每小时需要行15千米．
| 选择方框中的单词，用其正确形式完成下列句子。 | |
2. If you want to be healthier, you must take more ________. 3. Mother felt _______ after she did so much housework. 4. In ten minutes he was fast ________. He was too tired. 5. I was busy _______ trees on the hill. 6. We had to work for hours to stop the ship _______ going down. 7. She looks _______ her sister, but she is much younger. 8. What do you _______? I can't understand. 9. The doctor asked me ________ more exercise every day. 10. She was hungry, but she didn't feel like ________ anything. |