世界上平均年降雨量最少的地方在（）
A南海诸岛
B长江流域“三大火炉”
C吐鲁番盆地
参考答案：C
被秦王所采用，后来成为秦统一后许多政治措施的理论依据的学说派别是[ ]
A．墨家
B．儒家
C．道家
D．法家
Which of the following statements regarding diminishing marginal returns is most accurate（）
A. As the quantity produced rises, costs begin to rise at a decreasing rate.
B. As the quantity produced falls, costs begin to rise at a decreasing rate.
C. As the quantity produced rises, costs begin to rise at an increasing rate.
