Why does the author believe that the Mandans were skilled farmers

Câu hỏi :

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions

A. They developed effective fertilizers.

B. They could grow crops in most types of soil.

C. They could grow crops despite adverse weather.

D. They developed new varieties of corn.

* Đáp án

C

* Hướng dẫn giải

Đáp án C

Dựa vào chi tiết đoạn 3.

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