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【单选题】
A brand of cough syrup comes with a measuring cup attached so that customers can measure the proper dosage. A consultant has pointed out that this cup is unnecessary, since most customers have measuring cups at home. Since the cups increase the cost of packaging the cough syrup and reduce the total number of units that can be shipped in a standard package, the consultant advises that the company can increase its net revenue on this product (total revenue minus total costs) by selling the cough syrup without the measuring cups. Which of the following, if true, provides the strongest evidence that the company should not follow the consultant's advice?
A.
Studies have shown that customers who use cough syrup without a measuring cup frequently take either too little or too much of the medicine, rendering the dosage either ineffective or, in cases of overdose, dangerous.
B.
The company has included a measuring cup with each bottle of cough syrup for the last 18 years.
C.
Studies have shown that 85 percent of consumers possess at home either a measuring cup, a set of measuring spoons, or both.
D.
Many customers neglect to follow the recommended dosage of cough syrup even when the measuring cup is packaged along with the bottle of cough syrup.
E.
Shipping the cough syrup bottles without the measuring cups will provide a marginal improvement in the number of cough syrup bottles that can be shipped in a standard package.
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参考答案:
举一反三
【多选题】下列各事项中,会产生暂时性差异的有( )。
A.
对固定资产计提减值准备
B.
期末其他权益工具投资(原为可供出售金融资产)的公允价值发生变动
C.
企业的非公益性对外捐赠支出
D.
企业违反合同协议而支付的违约金,尚未支付
E.
E .企业预提产品质量保证费
【单选题】下列有关准确度、精确度、系统误差、偶然误差之间关系的说法中不正确的是 ( )
A.
准确度高,精密度一定高
B.
精密度高,不一定保证准确度高
C.
系统误差小,准确度一般较高
D.
偶然误差小,准确度一定高
【单选题】C++系统预定义了4个用于标准数据流的对象,下列选项中不属于此类对象的是( )。
A.
cin
B.
cout
C.
cerr
D.
cset
【多选题】下列有关准确度、精密度、系统误差、偶然误差之间的关系的说法中正确的是( )
A.
准确度高,精密度一定高
B.
精密度高,不一定能保证准确度高
C.
系统误差小,准确度一般较高
D.
偶然误差小,准确度一定高
E.
准确度高,系统误差与偶然误差一定小
【单选题】C++系统预定义了4个用于标准数据流的对象,下列选项中不属于此类对象的是________。
A.
Cset
B.
cin
C.
cout
D.
cerr
【单选题】准确度、精密度、系统误差、偶然误差的关系,下列说法中正确的是
A.
精密度高,不一定能保证准确度高
B.
偶然误差小,准确度一定高
C.
系统误差小,准确度一般偏高
D.
准确度高,偶然误差一定小
【单选题】下列对偶关系正确的是【】。
A.
μ↔ε(正确答案)
B.
k↔1/k
C.
ε↔σ
D.
η↔η
【多选题】下列各事项中,会产生暂时性差异的有( )。
A.
对固定资产计提减值准备
B.
期末其他权益工具投资的公允价值发生变动
C.
企业的非公益性对外捐赠支出
D.
企业违反合同协议而支付的违约金
【单选题】下列对偶关系正确的是【】。
A.
μ↔ε
B.
k↔1/k
C.
ε↔σ
D.
η↔η
【单选题】C++系统预定义了4个用于标准数据流的对象,下列选项中不属于此类对象的是( )。
A.
cout
B.
cin
C.
cfile
D.
cerr
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