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【判断题】
我国对二维条码技术的研究开始于1993年。在消化国外相关技术资料的基础上，中国物品编码中心制定了两个二维条码的国家标准：《四一七条码》、《快速响应矩阵码》。A.
正确
B.
错误
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举一反三
【简答题】acid test ratio in year 1
【单选题】The acid-test ratio:
A.
Is also called the quick ratio.
B.
Measures profitability.
C.
Measures inventory turnover.
D.
Is generally greater than the current ratio.
E.
Measures return on assets.
【单选题】The acid-test ratio ( )
A.
is a quick calculation of an approximation of the current ratio
B.
does not include all current liabilities in the calculation
C.
does not include inventory as part of the numerator
D.
does include prepaid expense as part of the numerator
【简答题】acid test ratio in year 2
【单选题】What are the Venus clouds composed of?
A.
Sulfur.
B.
Acid.
C.
Vapor.
D.
Sulfuric acid.
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