An air cleaner, also known as anair purifier, is an appliance that cleans the air by removing impurities. An air cleaner can clean the air in a single room, a whole house or an industrial workspace. Air cleaners are employed in situations where the air typically becomes unhealthy due to ...
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A. Using more fossil fuels B. Cutting down more trees C. Using more clean energy sources D. Polluting the water 相关知识点: 试题来源: 解析 C。解析:文中提到“Solar power and wind power will become more common, replacing fossil fuels. This will lead to cleaner air and less damage to th...
A. Making the air cleaner. B. Helping animals find new habitats. C. Polluting the air. D. Making the forest grow faster. 相关知识点: 试题来源: 解析 C。解析:文中提到 The damage caused by forest fires is huge. The air is also polluted. 所以森林火灾会污染空气。反馈...
However, there is a wide variation in the performance of air cleaners that is dependent on the specific air cleaner design and various indoor factors. The most widely used method in the United States to assess the performance of new air cleaners is the procedure described in the American ...
A tube cleaner can be configured as a large free-standing unit operated with a foot pedal to control speed of rotation and water flow. Portable units are also available with long hoses and interchangeable shafts for smaller applications. Pneumatic tube cleaners driven by compressed air can be us...
itŌ sŌjŪr itŌ takami itŌdoeblin formula its a small overnight its never too old to its adj to do its a foolish sheep t its a little bit funn its a little late its a lot cleaner its a promise of a br its a wise man that n its about 6 degrees c its all about us...
A. Fly in the air B. Clean the floor by itself C. Make food D. Play music 相关知识点: 试题来源: 解析 B。解析:根据“And the smart vacuum cleaner can clean the floor by itself without much help from us.”可知智能吸尘器能自己清洁地板,所以选B。反馈 收藏 ...
百度试题 结果1 题目Plants can make the air cleaner. What kind of gas do they absorb? A. Oxygen. B. Carbon monoxide. C. Carbon dioxide. D. Hydrogen. 相关知识点: 试题来源: 解析 C。植物吸收二氧化碳,释放氧气,从而使空气更清洁。反馈 收藏 ...
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