首页英语词典oxygenoxygen考试真题

oxygen

英 ['ɒksɪdʒ(ə)n] 美['ɑksɪdʒən]
  • n. [化学] 氧气,[化学] 氧

考试真题


He displays fire fighters' equipment, including the oxygen mask, which he encourages his listeners to play with and put on.

出自-2010年12月听力原文

He provides oxygen masks to children free of charge

出自-2010年12月听力原文

A drop in oxygen pressure can cause headaches in certain individuals.

2019年12月四级真题(第三套)阅读 Section A

The lower oxygen pressure found in an aircraft cabin is equivalent to that at 6, 000-8, 000 feet of altitude.

2019年12月四级真题(第三套)阅读 Section A

The higher one climbs, the less oxygen there is in the air.

出自-2012年12月听力原文

You breathe less when you sleep, so you get less oxygen

出自-2012年12月听力原文

Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.

2015年12月六级真题(第二套)听力 Section C

If the air you're breathing is clean—which it would be if you're away from the smog of cities—then the air is filled with life-giving, energizing oxygen.

2019年高考英语全国卷I 阅读理解 七选五 原文

If you exercise out of doors,your body will learn to breathe more deeply,allowing even more oxygen to get to your muscles and your brain.

2019年高考英语全国卷I 阅读理解 七选五 原文

Phytoplankton live at the ocean surface, where they pull carbon dioxide into the ocean while giving off oxygen.

2019年高考英语北京卷 阅读理解 阅读D 原文

The loss of shade trees is already causing a slight change in the world's climate, and studies show that loss of oxygen-giving trees also leads to air pollution and global warming.

2015年高考英语陕西卷 阅读理解 阅读B 原文

To do CPR, you press on the sick person's chest so that blood moves through the body and takes oxygen to organs.

2017年高考英语北京卷 阅读理解 阅读A 原文

Without oxygen the brain is damaging quickly.

2017年高考英语北京卷 阅读理解 阅读A 原文

Laughter does produce short-term changes in the function of the heart and its blood vessels, boosting heart rate and oxygen consumption.

2011年考研真题(英语一)完形填空 Section Ⅰ