—Was it here________the people shouted______ chorus“Long live the King!”?

—Yes, that’s right.

A．where; at

B．that; at

C．which; in

D．that; in

感染(又称传染)的概念是指

A．病原体侵入人体的过程
B．病原体侵入人体的结果
C．人体对病原体的杀灭过程
D．病原体和人体之间相互作用的过程
E．病原体寄生人体后引起的机体免疫系统的应答