In the spring of 1961， Yuan planted the seeds of the mutant in a pioneering field， proving that the plant， discovered in 1960， w-未来题库

In the spring of 1961， Yuan planted the seeds of the mutant in a pioneering field， proving that the plant， discovered in 1960， w

In the spring of 1961， Yuan planted the seeds of the mutant in a pioneering field， proving that the plant， discovered in 1960， was a " natural hybrid rice" .

A.正确

B.错误

正确答案：正确

Tags:The discovered pioneering

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