DNA损伤的光修复作用是一种高度专一的修复方式,它只作用于紫外线引起的()。
参考答案:嘧啶二聚体
用所给词的适当形式填空。
1. _______________ (do) Santa bring gifts yesterday?
2. It is _______________ (shine) in the sky.
3. Let's _______________ (invite) Danny to our Christmas party.
4. Danny is going to _______________ (walk) to park Party.
5. Jenny's family is _______________ (get) ready for the Christmas.
6. Jenny _______________ (eat) eggs for breakfast yesterday.
7. There _______________ (be) Christmas lights on our house.
8. Danny _______________ (have) a pair of skates for Li Ming.
9. Jenny always _______________ (wear) dresses.
10. They are _______________ (play) cards.
宽容合作的基础是()。
A.求同存异
B.求异存同
C.不帮助他人
D.不支持他人