A. Competition in business. B. Government grants. C. A type of economic policy. D. International transportation practices. 参考答案:C 答案解析:[听力原文]11-13 In the 18th century French economists protested the excessive ,regulation of busi
第8题: [单项选择]静息状态下脑的平均耗氧量是() A. 4.0ml/(100g·min) B. 3.5ml/(100g·min) C. 3.0ml/(100g·min) D. 2.5ml/(100g·min) E. 2.0ml/(100g·min) 参考答案:B