By extracting short pieces of the dodo’s DNA and (644) _____ these with the DNA of living birds, the scientists were able to deduce when the dodo evolved away from its relatives into a separa

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By extracting short pieces of the dodo’s DNA and (644) _____ these with the DNA of living birds, the scientists were able to deduce when the dodo evolved away from its relatives into a separate entity.

studying

comparing

researching

combining

Giải thích

Kiến thức: từ vựng

Giải thích:

study (v): học tập compare (v): so sánh

research (v): nghiên cứu combine (v): kết hợp

Đáp án: B