改进题：These days,the U. S. economy isn't "graduating enough scient

改进题：These days,the U. S. economy isn't "graduating enough scientists to fill the need of the coming decades, "frets Charles C. Leighton, "That's a real concern. "

译文：近来，美国经济“未培养出足够的科学家来满足今后几十年发展的需要，”查尔斯C·莱顿抱怨说，“这才真正需要关注。”
【正确答案】：改进的译文：近来，美国经济“未培养出足够的科学家来满足今后几十年发展的需要，”查尔斯C·莱顿抱怨说，“这才是真正需要关注的问题。”
【题目解析】：p67