问题标题：
关于一道选择题~
问题描述：
老师 您好！这道问题要如何解答？ 谢谢~---------，a man who expresses himself effectiovely is sure to succeed more rapidly than a man who can not. A. other things being equal B. were other things equelC. to be equel to other things D. other things to be equel
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