百度试题 结果1 题目Isn't it amazing ___ plants can purify the air? A. that B. when C. what D. how 相关知识点: 试题来源: 解析 A。本题考查主语从句的用法。it 是形式主语,真正的主语是后面的 that 从句。反馈 收藏
ventilation, or air-conditioning (HVAC) units. Here they can safely and efficiently clean the air in the whole building. However, it is also possible to purchase portable air cleaners that work to purify the air in a single room. ...
百度试题 结果1 题目What’s the text mainly about? A. textile helping purify the air. B. An industry causing pollution. C. A way to achieve zero-emission. D. A trend in the fashion industry. 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
Plants can purify the air.What part of a plant is mainly responsible for purifying air? A. Leaves. B. Stems. C. Roots. D. Flowers. 相关知识点: 试题来源: 解析 A。植物的叶子主要负责净化空气。茎、根和花在净化空气方面作用较小。
A [试题分析] 本题考查学生利用文章内容进行推断的能力。[详细解答] “The air helps purify the water”这句话出现在文章第四段的最后一部分,根据该句前面一句的内容“These resources are tied together in a complex set of transactions.”我们不难看出这里讲到是生态链及生态平衡的问题,故选A。反馈 收藏 ...
stiffness),icingisthebestway. E.Forevery one pound youlose,that?sfour poundsofpressureoffyourknees. F.And morethanlikely,there?sonethatyou don?tyetknowaboutthatcanhelpyou. G.Usingheatandicetotreatjointdiscomfortisa time-testedandgoodchoiceformany. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
题目What do plants do to the air? A. Make it dirty B. Purify it C. Add pollutants to it D. Make it thinner 相关知识点: 试题来源: 解析 B。植物可以净化空气。A 选项是使空气变脏,C 选项是给空气添加污染物,D 选项是使空气更稀薄,都不符合。
What is the best way to purify water when backpacking? The best way to purify water during backpacking is to use chlorine or iodine tablets. They take less space and usually take 30-60 minutes to purify water. Do water filters purify water?
First, we can plant more flowers and plants. It can purify air, carries on the photosynthesis, carbon dioxide into oxygen, trees can save a lot of ground water, prevent soil erosion, solid earth, also can withstand the sand. How important the trees are! We can think of environmental prote...
First, we can plant more flowers and plants. It can purify air, carries on the photosynthesis, carbon dioxide into oxygen, trees can save a lot of ground water, prevent soil erosion, solid earth, also can withstand the sand. How important the trees are! We can think of environmental prote...