( )of the Earth's surface sovers with water ,the salt water

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( )of the Earth's surface sovers with water ,the salt water take up 97.5%,fresh water only 2.5%
a.1/4 b.3/4 c.9/10

.答案是 3/4
(3/4) of the Earth's surface is covered with water,salt water takes up 97.5%,fresh water only 2.5%
地球的表面4分之3覆盖着水,咸水占 97.5%,新鲜水只有 2.5 %

( )of the Earth's surface sovers with water ,the salt water 1.Most of the earth's surface ________by water. Water _________ about seventy persent of the earth,s surface three quarters of the earth's surface is covered with water. More than_____of the earth Earth's surface is water. ____ of the surface of the earth is covered with water.A.fir The surface of the Earth is about 70% water water over 70% of the earth"s surface .it‘snecessary all liv water c? over 70% of the earth"s surface .it‘snecessary f? a __ most of the earth's surface is covered by water,fresh wat 21.____ most of the earth’s surface is covered by water,fres 选择as we all know, two thirds of the earth's surface is water