题目

—I really don’t know how to thank you enough . —       . A．No problem                           B．Think nothing of it C．Not at all                           D．It doesn’t matter 答案：B 解析: think nothing of it：used as a polite response to apologies, thanks, etc,用作回应道歉.感谢等的客气话。故选B。在极为特殊的情况下，蜥蜴的尾部会自动断落，断落部分还能动．蜥蜴的这种行为属于（　　） A、防御行为B、攻击行为C、社群行为D、节律行为