Not having promoted the new digital camera successfully, the pany should its original marketing methodsA.account forB.reflect onC.work outD.call up
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B解析试题分析：考查动词短语：A．account for占据，是…原因，B．reflect on反思，C．work out锻炼，制定出，结果是，D．call up打电话，回忆，句意：没有成功的推销它的新的数码相机，公司应该反思他们以前的市场策略。选B。考点：考查动词短语