问题补充:
In human, there is a possibility of such as fever and headachesif there is exposure to the virus.
A. symptoms
B. circumstances
C. consequences
D. exhibitions
答案:
(答案→)A. symptoms
B. circumstances
C. consequences
D. exhibitions
解析:名词辨析。A症状;B环境;C结果;D展览;句意:在人类身上,如果他们感染了病毒,就会有发烧头疼等等的症状。根据句意说明A正确。