The rescue team didn’t leave until they were able to find no of life in the ruins after the destructive quake.
A. symbol
B. sight
C. sign
D. signature
网友回答
A. symbol
B. sight
(答案→)C. sign
D. signature
解析：句意：破坏性地震以后，救援队直到在废墟中再也发现不了任何生命迹象后才离开。sign迹象，信号；symbol 象征；sight视力，看见，视野，景象；signature签名，署名。