52. According to a recent study of consumer spendingon prescription medications, increases in the sales of the 50 drugs (that were advertised)most heavily accounts for almost half of the $20.8 billion increase in drugspending last year, the remainder of which came from sales of the 9,850prescription medicines that companies did not advertise or advertised verylittle. A. heavily accounts for almost half of the $20.8billion 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 theincrease coming C. heavily accounted for almost half of the $20.8billion increase in drug spending last year, the remainder of the increasecoming D. heavily, accounting for almost half of the $20.8billion increase in drug spending last year, while the remainder of theincrease came E. heavily, which accounted for almost half of the$20.8 billion increase in drug spending last year, with the remainder of itcoming 【According to a study, increases(主) in the sales of drugs…accounted(谓) for XX increase, theremainder of the increase coming from…】 选C 我不太明白为什么后面要用coming而不是came?求大神解答
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