题目

- Stop______ ,listen to me carefully.-OK. We will stop______ to you.A. talking; listening B. to talk; listeningC. talking; to listen D. talk; listen 答案:【答案】C【解析】句意:----别说话,仔细听我说。----好的。我们将停下来听你说。短语stop to do sth.:停下来去做某事,指两件事;stop doing sth.:停止做某事,不做某事,指一件事。根据“listen to me carefully.”可知是一件事,停止说话,故是Stop talking;根据OK可知是“停止说话去听你说话,两件事”,故已知复数z=(m2-4)+(m2-m-6)i是纯虚数,则实数m=( )A.±2B.-2C.2D.3
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