问题
排序题
Read and number. 将下列单词排序。
1. second 2. third 3. twelfth 4. fifth 5. first
6. fourth 7. seventh 8. sixth 9. eighth 10. ninth
答案
| 5 1 2 6 4 8 7 9 10 3 |
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Read and number. 将下列单词排序。
1. second 2. third 3. twelfth 4. fifth 5. first
6. fourth 7. seventh 8. sixth 9. eighth 10. ninth
| 5 1 2 6 4 8 7 9 10 3 |
，开始时木块静止在木板左端。现用水平向右的恒力将木块拉至木板右端，则