题目是: 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 想问一下啊B.C.D选项哪里有问题呀?
B,so ...so that 错,应是so ...that。即使是so gradual that they can be indistinguishable 也wordy。 C,economic shifts are unable to...错。should be SB are unable to D,enough not to be 错
B,so ...so that 错,应是so ...that。即使是so gradual that they can be indistinguishable 也wordy。 C,economic shifts are unable to...错。should be SB are unable to D,enough not to be 错