A and B cell的用法和样例：
- Each bit of numbers A and B is followed by a space.
- It was a straight choice between A and B.
- What is the difference between A and B?
- The results indicate that there are no significant changes in A and B cells of pancreatic islets.
- The union of two sets A and B is denoted by AUB.
A and B cell的相关资料：