【单选题】The Comparative Cost Doctrine (the Comparative Advantage) was proposed by ______ . A. The Mercantilism B. Adam Smith C. David Ricardo D. Heckscher-Ohlin
【单选题】Which of the following theories was proposed by David Ricardo?
A.
Theory of differences in labor productivity.
B.
Theory of differences in climate and resources.
C.
Theory of differences in factor endowments.
D.
Theory of random components determining the pattern of trade.
【单选题】同一油门下,剩余拉力随平飞速度增大的变化规律是( )。
【单选题】计数调整型抽样标准GB/T 2828.1的内容不包括( )。
【单选题】以下哪一项不是格罗斯曼对学科教学知识的划分?
【单选题】在计数调整型抽样标准GB/T 2828.1中,包括样本量字码表和正常、加严和放宽的一次、二次和五次抽样表的是( )。
【单选题】计数调整型抽样标准GB/T2828.1的辅助图表部分不包括( )。