下 * * 种感染过程中最常见的是
A．病原体被清除B．隐性感染C．显性感染D．病原携带状态E．潜伏性感染
参考答案：B
When I got to school, Amy ______his homework.
A．had invented
B．had finished
C．had developed
D．had rushed
个人汽车贷款在采取抵押担保时，只需调查抵押物的合法性。( )
