标题: og 10 62 [打印本页] 作者: songxuebest 时间: 2010-11-13 07:05 标题: og 10 62
62. Geologists believethat the warning signs for a major earthquake may include sudden fluctuationsin local seismic activity, tilting and other deformations of the Earth's crust,changing the measured strain across a fault zone, and varying theelectrical properties of underground rocks. (A) changing the measured strain across a fault zone and varying (B) changing measurements of the strain across a fault zone, andvarying
(C) changing the strain as measuredacross a fault zone, and variations of (D) changes in the measured strain across afaultzone, and variationsin (E) changes in measurements of the strainacross afault zone, andvariations among