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题目内容双击单词支持查询和收藏哦～
In the Hawaiian Islands, where the volcanic material is initially too ____________ to support running surface water, rainwater simply percolates down through the substratum.
- A.impermeable
- B.verdant
- C.flammable
- D.porous
- E.eroded
D显示答案
以上解析由 考满分老师提供。
