以下是引用jydemail在2006-3-31 7:42:00的发言:(D) In the absence of the 25% tax credit, business spending for research and development after 1981 would not have been substantially lower than it was............"it was" 指代的是增长率还是83年的投入值?) 我认为是83年的投入值. 如果这样,D就不是很严谨.
如果D答案改写为 In the absence of the 25% tax credit, the increase rate of business spending for research and development after 1981 would not have been substantially lower than it was. ,那么,我认为D答案更严谨. 请各位指点
改写后意思不对,因为虚拟语气的意思是"如果没有税收减免,spending比实际高",不是比其他年度高,我知道你理解成"边际"的概念啦 |