13.病毒感染宿主细胞后可出现（   ）。
A、细胞死亡
B、细胞转化
C、细胞转化
D、合胞体
E、多核细胞

单项选择题

Dentin is located in the gums.

判断题Dentin is located in the gums.

State universities get most of their revenue from taxes...

单项选择题State universities get most of their revenue from taxes.