工业上所谓的“三酸两碱”中的两碱通常指的是（）。
A.氢氧化钠和氢氧化钾
B.碳酸钠和碳酸氢钠
C.氢氧化钠和碳酸氢钠
D.氢氧化钠和碳酸钠
参考答案：D
淀粉、蛋白质和脂肪在消化道内的最终消化产物是（ ）
A．葡萄糖、氨基酸和甘油、脂肪酸
B．葡萄糖、多肽和脂肪酸
C．麦芽糖、氨基酸和甘油、脂肪酸
D．麦芽糖、氨基酸和甘油
Which of the following fiscal policy models is most likely to support the conclusion that the adjustment of money wages to restore full-employment equilibrium is rapid and that without the distorting effects of taxes, long-run equilibrium real output would increase with increases in the labor force and accumulated capital, and with improvements in technology（）
A. Classical.
B. Keynesian.
C. Supply-side.
