阅读理解。 |
Most animals only have animals of a different kind for food. But sometimes two kinds of animals come |
1. Is the partnership between two animals good or bad for both sides? _____________________________ |
2. Can sheep stop the parasites from troubling them by themselves? _____________________________ |
3. Why do any birds like to sit on a sheep? _____________________________ |
4. What role(角色)do the small plants inside corals play? _____________________________ |
5. How do the small plants help corals? _____________________________ |