ARE CARBON MONOXIDE AND LEAD EXTREMELY POISONOUS

Question

Câu 4: Are carbon monoxide and lead extremely poisonous?WRITING I. Make the question with the underlined part in each of sentence: (2Ps) tu cau 1 den cau 4

Accepted Answer

Phần trắc nghiệm đáp án A đúng Reading Câu 1: There are three sources. They are acid rain, car exhaust fumes and oil spills. Câu 2: Because it contains sulphuric dioxide and nitrogen oxide, which com....

ARE CARBON MONOXIDE AND LEAD EXTREMELY POISONOUS

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