When it es to the civil war in Syria, the US government’s attitude towards it has experienced a(n) change , which may have a positive effect on Syria present situation.
A. superior
B. superb
C. subtle
D. stubborn
网友回答
A. superior
B. superb
(答案→)C. subtle
D. stubborn
解析：A. superior优于，B. superb 极好的，华丽的，丰盛的，C. subtle微妙的，敏感的，狡猾的，巧妙的，D. stubborn顽固的，固执的，顽强的或有决心的，句意：当说到以色列的内战，美国政府的态度已经有了微妙的变化，这对以色列现在的形势有着积极的影响。根据句意选C。