( )is the largest animal in the world,which breathe with( )1.Elephant,gill;2.Dinosaur,gill;3.Blue waale,lungs

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( )is the largest animal in the world,which breathe with( )1.Elephant,gill;2.Dinosaur,gill;3.Blue waale,lungs
( )is the largest animal in the world,which breathe with( )
1.Elephant,gill;
2.Dinosaur,gill;
3.Blue waale,lungs

( )is the largest animal in the world,which breathe with( )1.Elephant,gill;2.Dinosaur,gill;3.Blue waale,lungs
3 Blue Whale,lungs
蓝鲸是世界上最大的哺乳动物(用肺呼吸的动物).
其它两个答案说用鳃呼吸,大象和恐龙是这样吗?

3
Blue whale

选3吧
blue whale蓝鲸
用肺(lungs)呼吸,它是哺乳动物嘛