section 7-18 Sales of United States manufactured goods to nonindustrialized countries rose to $167 billion in 1992, which is 14 percent more than the previous year and largely offsets weak demand from Europe and Japan. A) B) which is 14 percent higher than it was the previous year C) 14 percent higher than the previous year's figure D) an amount that is 14 percent more than the previous year was E) an amount that is 14 percent hihger than the previous year's figure
为什么不可以用D呢?A好像也对?记着好像有书提到过 more than the previous year 可以用作比较, 而不用在 the previous year 上再加指代词?