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Jiaolong is the first operational deep-sea manned submersible designed independently in China. It is the most capable operational manned submersible in the world at present.

Jiaolong is the first operational deep-sea manned submersible designed independently in China. It is the most capable operational manned submersible in the world at present.
A.正确
B.错误
正确答案：A

标签：向世界讲述中国

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