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【简答题】
A．Some slaves were brought to America in the 20th century. B．Slaves were not treated as people. C．Being brutal to slaves was against the law. D．No slave owner was ever punished for their brutality.
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【简答题】请计算下列商品条码的校验码 1组计算978730221676x 2组计算691409850113x 3组计算666555789123x 计算完成,请将答案拍照形式上传。
【单选题】According to a survey, which was based on the responses of over 188,000 students, today’s traditional-age college freshmen are “more materialistic and less altruistic (利他主义的)” than at any time in the ...
A.
have never been so materialistic as today
B.
have never been so interested in the arts
C.
have never been so financially well off as today
D.
have never attached so much importance to moral sense
【判断题】物流是零售、连锁企业生存的第三大命脉，现代物流具有影响零售企业总体生存发展的战略意义，作用主要体现在成本、利润和服务三个方面，可以推动零售企业经营成本的大幅降低。
A.
正确
B.
错误
【单选题】根据 3 中的数据,应用二阶差分方程预测2019年第一季度该商品的销售量为( )。
A.
39.0133
B.
38.1635
C.
39.1654
D.
38.5428
【简答题】四大海洋经济鱼类包括:大黄鱼、小黄鱼、带鱼(刀鱼)、( )。
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