The concert was broadcast live and the TV director thanked...下列选项哪个正确,为什么?The concert was broadcast live and the TV director thanked the audience in the concert hall for their ( ).A collaboration B co-operation C collusion D consurrence为什么不选A,A与B有什么区别? 英语
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【答案】 A是合作,B是配合.A更倾向于两者的平等合作,而B则更倾向于“在某（些）人的帮助下”.
而且,A有贬义,是通敌的意思.