The term "eudiometer" is of Greco-Roman origin. "Eu" means "good," and "dio" means God. The latter part is a reference to God's residence as in the atmosphere, heavens or sky. The "meter" part indicates measurement. The first mention of an eudiometer was in 1777, when Italian phy...
There is no doubt that patience and hard work is___it takes to do a job well. (用适当的词填空) 2021-08-27更新|147次组卷|3卷引用:训练05 Book3 Unit5 What an adventure-2022年高考英语一轮复习小题多维练(外研版2019) 相似题纠错详情加入试卷 Ⅱ.短语...
SARS is a respiratory illness caused by a virus. It is sometimes called severe acute respiratory syndrome coronavirus (SARS-CoV). Coronavirus is the name of a group of viruses. The viruses are common and usually cause mild infections, such as a cold.What are the signs and symptoms of SARS...
What is Middle East respiratory syndrome (MERS)?MERS is a respiratory illness caused by a virus. It is sometimes called the Middle East coronavirus (MERS-CoV). Coronavirus is the name of a group of viruses. The viruses are common and usually cause mild infections, such as a cold. MERS ...
Today is World Water Day.In the morning, we had a class meeting talking about what to do on this special day. Finally, we reached an agreement and immediately began to make preparations for the afternoon’s activities. At 2:00 p.m., we went to the neighboring community to hand out lea...
A hydrogen fuel cell bus is an electric bus that uses hydrogen as its fuel source to generate electricity to power an electric motor, which in turn drives the bus's wheels. Unlike traditional battery-powered electric vehicles that need to be charged through a plug-in charging system, hydrogen...
During the design process, engineers need to determine the appropriate size for an engine or electric motor to operate a machine. For this purpose, a driving dynamometer is used. This type of dynamometer measures the power, force, and speed of the motor or engine through integrated monitors and...
党的十九届四中全会首次把我国的分配制度上升为基本经济制度，并首次明确发挥第三次分配作用。第三次分配是建立在自愿性的基础上以募集、自愿捐赠和资助等慈善公益方式对社会资源和社会财富进行的分配。体现了公民参与帮助弱者和完善自身道德的内在要求，宛如一只促进社会公平正义的“温柔之手”。发挥第三次分...
It is a type of heart disease that occurs when these arteries become narrow or blocked due to a build-up of fatty deposits of plaque. Plaque is made up of fat, cholesterol, calcium and other substances found in the blood. When plaque builds up in an artery, it is called atherosclerosis...
As an upper bound, we'll start with sea water, which contains nearly everything - including lots of salt, and weak acids. It's a GREAT conductor. Its conductance is about 5 Siemens per meter, which corresponds to a resistance of merely 0.2 Ohm-Meters. As we had just said, deionized ...