皮皮学，免费搜题
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【判断题】
引起企业经营风险的主要原因是市场需求和生产成本等因素的不确定性,经营杠杆本身并不是资产报酬不确定的根源,只是资产报酬波动的表现。( )A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】紫外一可见分光光度法用于药物的含量测定,主要有 法、 法、 法和计算分光光度法。
【单选题】In 1975 a pocket calculator cost more than $50; in 1990 a calculator of the same quality cost less than $10. Which of the following explanations is most consistent with these facts?
A.
Intense competition in the calculator industry caused the supply curve for calculators to shift to the left, depressing the price.
B.
An increase in the demand for calculators led to the price drop.
C.
An improvement in technology caused the supply of calculators to increase, depressing their price.
D.
As the population grew, fewer expensive calculators were needed, causing prices to fall.
【简答题】*# calculator
【单选题】The world price of a simple electronic calculator is $5.00. Before Zimbabwe allowed trade in calculators, the price of a calculator there was $7.50. Once Zimbabwe began allowing trade in calculators w...
A.
importing calculators and the price of a calculator in Zimbabwe decreased to $5.00.
B.
importing calculators and the price of a calculator in Zimbabwe remained at $7.50.
C.
exporting calculators and the price of a calculator in Zimbabwe decreased to $5.00.
D.
exporting calculators and the price of a calculator in Zimbabwe remained at $7.50.
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