第七章测试
1.In 1960, the tuna submersible arrived in the Mariana Sea.( )
A:对 B:错
答案:B
2.The blue whale can dive 500 meters underwater.( )
A:错 B:对 3.Sharks live in Lake Baikal.( )
A:对 B:错 4.The seal dived 250 meters underwater.( )
A:错 B:对 5.Light at 1000 meters sea level will not reach this depth.( )
A:对 B:错

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