2. 外语
  3. The substance ______ easily through groundwater, and some communities have experienced acute episodes of water pollution after u

The substance ______ easily through groundwater, and some communities have experienced acute episodes of water pollution after u

admin2011-01-26  71
问题 The substance ______ easily through groundwater, and some communities have experienced acute episodes of water pollution after underground storage tanks ruptured.
选项 A、perfuses
B、perscusses
C、percolates
D、perforates
答案C
解析 C选项是个超纲词汇，有时需要语感的判断。
转载请注明原文地址:https://kaotiyun.com/show/G9BO777K
0

考博英语

相关试题推荐
随机试题
最新回复(0)