Scientists around the world are working to___the treatment of AIDS.A invent B discover C create D produce

around the 19th century是什么意思? 英语翻译Scientists think that there has been life on Earth for millions of years.However,we haven't found life on other planets yet.Wny not?The Earth is a planet and it goes around the Sun.None of them has an environment with air,so people and th 英语翻译Cooler air flows into that space.Air is always moving around the earth.The moving air carries clouds along with it.It is not easy to forecast the weather.Meteorologists,scientists who study weather to use many kinds of tools.They study th please confirm it around 28th,May怎么翻译? Scientists around the world are working to___the treatment of AIDS.A invent B discover C create D produce around “around 英语翻译Walking in the sun in around and around I can believe love is at around Walking in the sun in around and around and around Walking in the sun in around Sun in around and around And the lander or chorer check to want a stair How too fun th It ____ (know)to us all that th earth goes around the sun. around the turn of the 20th century指的是几几年 Please fill in the blanks with proper words,thanks!Scientists have helped us find out things about life and the world around us s______ ancient times. scientists 是什么意思 scientists是什么意思? Scientists是什么意思? the book,（）are truth stories about great scientists of 20th,is worth readingin which of which 怎样判断呢, air around 在该句中的意思是什么?Then the scientists collected samples of air around damaged leaves from each type of crop.科学家是采集了已损叶子的空气作为样本? The Earth goes around the sun in the middle. The moon goes around the Earth all the time. All of th这段话是什么意思? 5道英语题目 说明理由1.The scientists found it was not possible to fly in the 18th century.(保持句意不变) The scientists found ________ ________ to fly in the 18th century.2.The boy came to the world in 1970.(保持句意不变) The b