Plants need good ___ to grow healthily. A. soil quality B. sound quality C. light quality D. air quality 相关知识点: 试题来源: 解析 A。选项 B“sound quality”声音质量与植物健康生长无关;选项 C“light quality”光照质量不是本题所强调的重点;选项 D“air quality”空气质量对植物生长有影响...
Good ___ quality is important for the health of plants and animals in ecological agriculture. A. land B. water C. air D. climate 相关知识点: 试题来源: 解析 C。良好的空气质量对于生态农业中动植物的健康很重要。空气是动植物呼吸和生存的必要条件,质量好坏直接关系到它们的生长和健康。土地、水源...
解析 C。解析:动名词作主语强调的是一种行为动作的概念。“planting more trees in the city(在城市里种植更多的树)”这个动作作主语。选项A“Plant”是动词原形,不可以作主语;选项B“Plants”是动词的第三人称单数形式,不符合主语要求;选项D“Planted”是过去分词,不能作主语。
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Now, researchers from the University of Technology Sydney, Australia shows just how efficient plants are at ridding indoor air of these nasty toxins. “We know that indoor air quality is often significantly more polluted than outdoor air, which in turn impacts mental and physical health,” said...
Green spaces are spaces filled with vegetation—like trees, flowers and other plants.But these days, outdoor time is competing for a child’s attention with indoor activities. Children may find it difficult to resist computers, television and electronic games.So, in many parts of the world ...
When you feel the heat, so do your plants. Hot summers can be rough, even for your indoor plants. If you’re trying to conserve energy and save money (and you should!) by not blasting the air conditioning, plants can suffer. Plants not native to warm climates or already weak due to...
There are good reasons why crop plants do not use dryness defenses already. 2018年6月六级真题(第一套)阅读 Section B There is something about water that makes it a good metaphor for life. 2018年12月六级真题(第一套)听力 Section B They really did very active promotion of diversity in the ...