病原体未引起组织损伤但引起免疫反应（）
A.慢性感染特点
B.病原携带者特点
C.急性感染特点
D.隐性感染特点
E.显性感染特点
参考答案：D
— _____
—Go down this street to the end.
A．Where are we now?
B．What are we doing at the market?
C．How can I get to the market?
D．Who can get to the market?
施工现场的食堂应距厕所、垃圾场（）m以上。
A.10
B.20
C.30
D.40
