Trắc nghiệm: According to the passage. the numerical value of the concentration level of a substance is only useful if ________. | Gửi trắc nghiệm |
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According to the passage. the numerical value of the concentration level of a substance is only useful if ________.
" có trong những liên kết dưới đây, nhấp chuột để xem chi tiết:An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits ... (Tiếng Anh - Lớp 12)
Nguyễn Thị Thương - 02/09 17:16:05
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 following questions from 22 to 28.An air pollutant is defined as a compound added directly or indirectly by humans to the ... (Tiếng Anh - Lớp 12)
Nguyễn Thanh Thảo - 01/09 12:11:49
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