[单项选择]But there are no convincing reasons for believing that this would have a _______ effect on economic performance. A. partial B. preferable C. beneficial D. liable
参考答案:C 答案解析:[解析] 语义连贯题。所填词修饰effect,[B] beneficial“有益处的,有帮助的”,符合句意,所以[C]为答案。[A]partial“偏袒的,偏爱的”,be partial to sb.