以扫的特征是什么？
参考答案：全身发红有毛
In relation to partnership law, explain the requirement that the business of the partnership must be carried on for the joint benefit of all the partners. (10 marks)
IL-2主要由哪种细胞产生（）
A.B细胞
B.巨噬细胞
C.NK细胞
D.树突状细胞
E.T辅助细胞
