单项选择题
A．do not pay their workers sufficient wages B．arc hurt by a trade imbalance C．import labor and materials from overseas D．provide a strong industrial base that prevents a trade deficit
A．Several worldwide economic problems. B．The causes and consequences of trade deficit. C．Lack of resources in underdeveloped countries. D．The value of exports against imports.
A．Low labor and material costs in Asian countries. B．A lack of natural resources. C．An underdeveloped industrial base. D．The high cost of exported items.