Trắc nghiệm: According to the passage. an advantage of using a photoflash is that it _____. | Gửi trắc nghiệm |
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According to the passage. an advantage of using a photoflash is that it _____.
" có trong những liên kết dưới đây, nhấp chuột để xem chi tiết:Read the passage and mark the letter A, B, C or D to answer the following questions.Most sources of illumination generate light over an appreciable period, and indeed if an object is lit for a very brief time (1ess that 1/25 second), the human eye ... (Tiếng Anh - Lớp 12)
Nguyễn Thị Thương - 03/09 10:08:51