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【单选题】
乙醇在浓硫酸催化下加热到 170 °C 反应生成的产物主要是A.
甲烷
B.
乙烯
C.
乙炔
D.
苯
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举一反三
【单选题】If an economy is in a steady state with no population growth or technological change and the marginal product of capital is less than the depreciation rate:
A.
the economy is following the Golden Rule.
B.
steady-state consumption per worker would be higher in a steady state with a lower saving rate.
C.
steady-state consumption per worker would be higher in a steady state with a higher saving rate.
D.
the depreciation rate should be decreased to achieve the Golden Rule level of consumption per worker.
【单选题】If the economy is in the liquidity trap, an increase in the money supply______.
A.
raises interest rates
B.
lowers interest rates
C.
has no significant effect on interest rates
D.
causes inflation
【简答题】为何石灰属于气硬性胶凝材料?
【简答题】v. 做出反应;回应
【简答题】做出回答,做出反应
【单选题】If an economy is in a steady state with no population growth or technological change and the capital stock is below the Golden Rule:
A.
a policymaker should definitely take all possible steps to increase the saving rate.
B.
if the saving rate is increased, output and consumption per capita will both rise, both in the short and long runs.
C.
if the saving rate is increased, output per capita will at first decline and then rise above its initial level, and consumption per capita will rise both in the short and long runs.
D.
if the saving rate is increased, output per capita will rise and consumption per capita will first decline and then rise above its initial level.
【简答题】为何石灰属于气硬性胶凝材料?
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