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[单选题]Professor English's attitude showed his care and concern. The students' attitudes, on the other hand, were very nonchalant.DYg答案窝(daanwo.com)-大学生作业答案及考资分享平台
"nonchalant" means ().DYg答案窝(daanwo.com)-大学生作业答案及考资分享平台
AattitudeDYg答案窝(daanwo.com)-大学生作业答案及考资分享平台
BconcernedDYg答案窝(daanwo.com)-大学生作业答案及考资分享平台
Ccausal

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