The organs where mature lymphocytes settle down include
A. Thymus
B. Pancreas
C. Bursa of Fabricius
D. Liver
E. Lymph nodes
查看答案
The functions of spleen don’t include
A. It provides a place for T and B cells to settle down
B. It can produce secretory IgA and mediates mucosal immunity
C. It provides a place for immune response
D. Hematopoiesis
E. Blood storage
当一束白光通过()后,按照不同波长展开的现象,称为光的()。