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Câu hỏi:
Choose the best answer to complete each sentence: _________ aren't effective anymore because insects have become resistant to them.
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A.
fertilizers
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B.
pesticides
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C.
herbicides
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D.
medicines
Lời giải tham khảo:
Đáp án đúng: B
fertlizer: phân bón
herbicide: thuốc diệt cỏTạm dịch: Thuốc trừ sâu đã không còn hiệu quả nữa, vì sâu bệnh đã kháng bệnh với nó.
⇒ Chọn B
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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CÂU HỎI KHÁC
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