想请教以下这题(我的mac贴上来後格式怎麽改都好怪,请大家点连结看题目好了) http://forum.chasedream.com/thread-387950-1-1.html og17 720 According to a recent study of consumer spending on prescription medications, increases in the sales of the 50 drugs that were dvertised most heavily accounts for almost half of the $20.8 billion increase in drug spending last year, the remainder of which prescription medicines that companies did not advertise or advertised very little. A. heavily accounts for almost half of the $20.8 billion increase in drug spending last year, the remainder of which came B. heavily were what accounted for almost half of the $20.8 billion increase in drug spending last year; the remainder of the increase coming C. heavily accounted for almost half of the $20.8 billion increase in drug spending last year, the remainder of the increase coming D. heavily, accounting for almost half of the $20.8 billion increase in drug spending last year, while the remainder of the increase came E. heavily, which accounted for almost half of the $20.8 billion increase in drug spending last year, with the remainder of it coming 答案是C 但我一开始就因为觉得C是sentence fragment而把它删掉了 查看到有网友说这是absolute phrase 但还是有点看不懂，不知道有没有人可以说明一下怎麽判断到底是sentence fragment 还是absolute phrase(实在看不太懂absolute phrase的定义) --

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