Người ta sử dụng phương pháp giao phối cận huyết và tự thụ phấn trong chọn giống chủ yếu để.

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Một số câu hỏi khác có thể bạn quan tâm.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: 

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:

• Mark the letter A, Β, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: 

• Mark the letter A, Β, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: 

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions:

• X-Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: 

• X-Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: 

• Mark a letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the offer three in pronunciation in each of the following questions:

• Mark a letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the offer three in pronunciation in each of the following questions: