117.a company's two divisions performed with remarkable consistency over the past three years:in each of those years,the pharmmaceuticals division has accounted for roughly 20 percent of dollar sales and 40 percent of profits,and the chemicals division for the balance.
which of the following can properly be inferred regarding the past three years from the statement above?
(C)the chemmicals division has realized lower profits per dollar of sales than has the pharmaceuticals division.
这个题我怎么看的云里雾里的,好像看不懂题干的意思,请大牛们指点呀! | 
