The main infection source of epidemic type B enecphalitis virus is( )

admin2011-12-05  26

问题 The main infection source of epidemic type B enecphalitis virus is(    )

选项 A、patient
B、health carrier
C、young pig
D、culicine
E、10use

答案C

解析
转载请注明原文地址:https://jikaoti.com/ti/vGtnFFFM
0

随机试题
最新回复(0)