【正确答案】 B

【答案解析】work out此处意为“有……的结果”，尤其指“有好结果”，如：I hope the new job works out for you．我希望新的工作能令你满意。work off则意为“(通过消耗体力)宣泄感情”，如：She worked off her anger by going for a walk．她散散步气就消了。work away意为“继续”，如：In spite of all the difficulties，she worked away at her research work．尽管有种种困难，她还是继续做她的研究工作。work up作“逐步形成，渐渐发展”讲，如：He worked up the firm from nothing．他白手起家发展起这家商行。