OG10语法268题及GWD22语法总结六十三
文章作者 100test 发表时间 2008:04:07 17:11:59
来源 100Test.Com百考试题网
62. Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth s crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.