Job discription is an introduction of the job,it is about what kind of job it is.while job analysis is about what you should do and what responsibilities you have to take for this job,and what characteristics it demands you for this job. … Read more

according to Archimedes’ law F=ρgv,we can conclude that ,if the flotage is stronger than gravity ,the egg will float. Then it depends on the density of the egg and the liquid. Because the density … Read more

An Interesting question! Our fingernails have a lot of functions.firstly,they make our hands look more beautiful,not only young people in our days but also the queen mother in ancient China wear fake long fingernails to make their hands more beautiful. Secondly,it can be used to scratch … Read more

yes ,I wear my seat belt all the time and also ask my passengers to buckle up.because traffic accidents happen everyday and no one knows when is the next,for our safety,we … Read more