287. The clear colorless liquid that falls as rain, fills lake and rivers, and is necessary for life

题目简介

287. The clear colorless liquid that falls as rain, fills lake and rivers, and is necessary for life

题目详情


287. The clear colorless liquid that falls as rain, fills lake and rivers, and is necessary for life to exist is______.
A.oxygenB.petrolC.waterD.Flood
题型:单选题难度:偏易来源:不详

答案

 C

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