These bulbs use a (17) of the electricity of standard bulbs and last eight times (18). Therefore, consumers can save about US$7 to US$21 per bulb. In Europe, there is a labeling scheme for refrigerators, freezers, washing machines and tumble dryers.
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| 05/09 22:06:24 (Tiếng Anh - Lớp 7) |
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These bulbs use a (17) of the electricity of standard bulbs and last eight times (18). Therefore, consumers can save about US$7 to US$21 per bulb. In Europe, there is a labeling scheme for refrigerators, freezers, washing machines and tumble dryers.
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| A. weightlessness 0 % | 0 phiếu |
| B. longer 0 % | 0 phiếu |
| C. wavelengths 0 % | 0 phiếu |
| D. length 0 % | 0 phiếu |
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