In frigid regions a layer of permafrost under the soil surface prevents water fr

游客2024-01-10  19

问题 In frigid regions a layer of permafrost under the soil surface prevents water from sinking deep into the soil, and so the water (i)______the land, helping to create bog and (ii)______ conditions.

选项

答案 C,E

解析 and so表示前后同义重复;and表示前后同义重复。永久冻土层会阻止水渗土壤,所以水不能渗入土壤,也就是说水会留在表面。freeze凝固,parch干燥,inundate淹没。答案选C。积水多了就形成水多的环境,比如沼泽还有第二空需要填写的环境。tropical热带植物,swamp沼泽地,desert沙漠。答案选E。
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