Monkeys in the zoo have shown the flu ______ since last Monday and altogether 20 have died until now

题目简介

Monkeys in the zoo have shown the flu ______ since last Monday and altogether 20 have died until now

题目详情

Monkeys in the zoo have shown the flu ______ since last Monday and altogether 20 have died until now.  
[     ]
A. symbol      
B. sign            
C. signal          
D. symptom
题型:单选题难度:中档来源:同步题

答案

D

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