参考答案

正确答案：D
解析：结构识别accord一致，调和，符合，in full accord完全一致；A．indecisive非决定性的：an indecisive contest非决定性的竞赛。B．sullen愠怒的，沉闷不乐的：a sullen face愠怒的面容。C．vocal发嗓音的，有声的：He became vocal with indignation．他因愤慨而发言。D．unanimous意见一致的，无异议的；He was elected with unanimous approval．他以全体一致同意而中选。