可卖什马特却通过大举进攻食品零售行业来增加吸引力，结果成效显著。
But Massmart increased its allure by rushing into the food-retailing business, and the gamble paid off.
1目的：于变异减少的情况下控制结果并学习能使结果成效维持的方法，与项目所有权的移交。
Purpose: to control result and learn the methods by which the result effect can be maintained under the condition that variation reduces, transfer of project ownership.
我们刚刚写完一小组随机控制试验的结果，它显示出这种疗法可能很有成效。
We are just now writing up the results of a small randomized, controlled trial suggesting there may be large effect sizes with this intervention.
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