渐变态
参考答案：
幼虫期与成虫期在形态和生活习性等方面都很相似，只是翅未成长和生殖器官未成熟。
单句改错。
1. Your friend comes to school is very upset. _________
2. Tell your friend that you are concerning about him. _________
3. While walk the dog, you were careless and it got loose. __________
4. Join the examination and you'll get a chance. __________
5. Yesterday I got my bike repair. __________
量变和质变的根本区别是（）
A.事物的变化是前进还是后退
B.事物数量的增与减
C.事物的变化是大还是小
D.事物的性质是否发生了根本变化
