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Câu hỏi:
What is a serious problem of Lake Baikal in Russia?
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A.
The government did not have the power to enforce laws and regulations.
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B.
It has 1,300 rare species that do not exist anywhere else in the world.
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C.
It contains a rich variety of animals and plants.
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D.
It is polluted by massive volumes of industrial wastes discharged into it.
Lời giải tham khảo:
Đáp án đúng: D
Hãy trả lời câu hỏi trước khi xem đáp án và lời giải -
A.
Câu hỏi này thuộc đề thi trắc nghiệm dưới đây, bấm vào Bắt đầu thi để làm toàn bài
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