The codes—which typically range in price from $80 to $155 per course—give students online access to systems developed by education companies like McGraw Hill and Pearson.
这些访问码的价格通常在每门课程80美元到155美元之间不等,学生需要通过这些访问码才能在线使用麦格劳·希尔和培生等教育公司开发的系统。
In 1917, following the death of John Alexander Hill, James H. McGraw merged the McGraw and the Hill Publishing Companies.
1917年,John Alexander Hill逝世后,James h . McGraw将麦克·格劳出版公司与希尔出版公司合并。
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