On the American money and for over 200 years, the phrase E Pluribus Unum has been affixed on the American Seal. Melting pot takes every culture that you put in and melts it into the whole. Each culture impacts the ...
如果有人告诉你,春天每年都在缩短,你可能深有同感,认为美好的春光总是越来越短暂。但如果他精确地告诉你,春天每年缩短30秒,你大概心中生疑,怀疑这种说法的真实性了。 其实,这种说法并非毫无根据,只是这里所说的春天,并非气象学上的春季,而是天文学...
Current sensors, also known as magnetic sensors, can be used in household appliances, smart grids, electric vehicles, wind power generation, etc. Many magnetic sensors are used in our lives, such as computer hard drives, compasses, household appliances and so on. What are the classifications of...
Stem cells are able to divide to produce populations of cells that differentiate into a related set of cells.今年春节我回家 ①十年前，父亲患绝症，永远离开了我们。没有了父亲，我们不愿再像以前那样每年春节时回到老家乡下的老宅里。母亲平时一人独守那座空荡荡的房子也不合适。我住在省城，住在老...
all the top-10 Chinese banks have an extensive presence there, and competition is almost cut-throat. In addition to national banks, many local banks from as far afield as Harbin have opened shop there. Guangzhou's local banks such as Guangzhou Bank and Guangzhou Agri-Business Bank are also...
A pair of binocularsBinoculars are a birdwatcher's best friend! They work like two small telescopes joined together, allowing you to use both eyes to see distant birds as if they were right in front of you. "They're perfect for spotting ...