标题: 请教 [打印本页] 作者: EMINEM830505 时间: 2009-11-2 17:16 标题: 请教 Climatic shifts are so gradual as to be indistinguishable at first from ordinary fluctuations in the weather. (A) so gradual as to be indistinguishable (B) so gradual 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作者: dengyichao 时间: 2009-11-2 22:00
选A吧作者: EMINEM830505 时间: 2009-11-9 16:07
对哈^^A作者: aeoluseros 时间: 2009-11-9 16:08
umm..lz的问题是? 发帖记得格式哦，方便后人research.作者: EMINEM830505 时间: 2009-11-9 16:09
好的哈^^谢谢版主提醒^^