外源性抗原在巨噬细胞内消化降解的部位是
A．包被小体
B．早期内体
C．晚期内体
D．内体溶酶体
E．初级溶酶体
参考答案：D
Kathy _______ a lot of Spanish by playing with the native boys and girls.
A．picked up
B．took up
C．made up
D．turned up
全冷冻式储罐fully refrigerated storage tank
