百度试题 结果1 题目 4. It's the mixture of gases(气体的混合物). It surrounds the earth. We breathe in it every day. We can't live without it. It's air. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
B Air is the mixture of gases that you breathe. You cannot see, smell or taste air but it is around you. Layers of air surround the earth, too, making up the earth's atmosphere. Oxygen is a gas found in the air. All animals,including humans, need it to stay alive.Nitrogen and ox...
It goes without saying that we need air to live and breathe. The air we breathe on the surface is a mixture of several gases including oxygen, nitrogen, argon, carbon dioxide, and other gases in trace amounts. We breathe easiest with 21% oxygen present in the air. When other gases cont...
aPls revert ASAP. We need to consolidate this and send to Hans (Our new EBT head). Pls尽快恢复。 我们需要巩固此和送到Hans (我们新的EBT头)。[translate] aAnd people often produce harmful gases. It is bad for our breathe, more impotantly, it is destroying our Earth. 并且人们经常导致有...
ai will be working all day tomorrow 我工作整天明天[translate] aAnd people often produce harmful gases. It is bad for our breathe, more importantly, it is destroying our Earth. 并且人们经常导致有害的气体。 它为我们是坏的,更加重要地,呼吸它毁坏我们的地球。[translate]...
A天空为什么是蓝色的?The air we breathe is mostly nitrogen(氮气)and oxygen, two gases that have no colour. So why does the sky look so blue, a colour that gives people a feeling of peace?Lord Rayleigh, a scientist in England, realized that the nitrogen and oxygen molecules(分子)are the...
The creation of the Davy lamp in 1815 was to spark our continual awareness regarding the impact of gas and chemical pollution.doi:HUMPHRY DAVYStephensBorg, KeithJournal of Perioperative Practice
用括号内所给词的适当形式填空。1. Our teacher told us that air is a mixture of gases. (mix)2. We were out of breath after only six minutes. (breathe)3. They swim freely in the water, returning to their _natural_ home. (nature)4. Students can get healthy breakfasts at school. (...
The air we breathe contains gases like oxygen and nitrogen that are essential to our customers. Air Liquide Engineering & Construction’s world-leading expertise and experience means the operation of our air separation facilities is not only adaptable to the different needs of those customers, but ...
aambuiance sends them to the hospital ambuiance送他们到医院[translate] a修复的时数 Repair hour[translate] aTaishun[translate] aFor one thing deadly gases in the atomosphere make it extremely dangerous to breathe 首先致命的气体在atomosphere使它极端危险呼吸[translate]...