Upon learning of systematic discrimination experienced by African Americans in the military, he called on them to "return fighting" from the war.
在了解到非裔美国人在军队中遭受的系统性歧视后，他呼吁他们从战争中“回复斗争”。
A systematic mathematics analysis was presented on second-degree price discrimination. On the basis of quantitative analysis, we got some qualitative conclusions.
对二度价格歧视理论进行了系统的数理经济分析，在定量分析的基础上，给出了一些定性的结论。
A systematic mathematics analysis was presented on second-degree price discrimination. On the basis of quantitative analysis, we got some qualitative conclusions.
对二度价格歧视理论进行了系统的数理经济分析，在定量分析的基础上，给出了一些定性的结论。
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