P部位
参考答案：
核糖体大亚基上肽基连接的部位称为肽基部位，简称P部位
我是小小数学家。填入正确的数字。
1. twelve pigs + thirteen pigs =
2. three dogs + ten dogs =
3. There are six pigs, nine cows, five sheep, two cats and nine goats on the farm.
How many animals on the farm? .
4. In my classroom, there are thirty boys and twenty-five girls.
How many students in my classroom? .
请分析哪些类型涂布器适合高速涂布，并简述其特点？
