174.(28920-!-item-!-188;#058&003515) Often major economic shifts are so gradual as to be indistinguishable at first from ordinary fluctuations in the financial markets.
A. so gradual as to be indistinguishable
B. so gradual so that they can be indistinguishable
C. so gradual that they are unable to be distinguished
D. gradual enough not to be distinguishable
E. gradual enough so that one cannot distinguish them
疑问是D为什么错? 看了前面的讨论帖,有几种意见如下: 第一种: 说not应该放在enough前面 如果不变位置的话,那这句的意思就是:足够平缓以至于不被察觉/ NOT的位置如果放在enough前面的话,那这句的意思就是:gradual not enough to be distinguishable 不足够平缓以至于被察觉----这样意思就错了啊
第二种: 说enough只能在后面否定,enough to be indistinguishable 但是刚才上网查了: enough不能与no构成否定句,只能借助not以及其他否定词,如: (1)We have not enough glasses for everyone.(不能说成no enough glasses) 我们的杯子不够分给每个人。 (2)We had hardly enough food to go around at the picnic.(不能说成no enough food) 我们的食物刚够分给参加野餐的人。 (3)He has barely enough money to live on.(不能说成no enough money) 他的钱仅够维持生活。 这些都是在前面否定enough啊...不是只能在后面否定啊。。。。