Noise is a fundamental component of confocal images, a result of discreet digital sampling of continuously emitting photons from samples. The contribution of noise to image quality (signal-to-noise ...

Hit the right note 言行得体，恰到好处 Episode 201126 / 26 Nov 2020 今日短语 “Hit the right note（击中正确的音符）” 是一个实用的短语，它既可以用来描述某人 “唱歌或演奏时音准动听”，也可以用来表示 “某人的言行举止恰当、得体，对在场的人产生了积极的影响”。 例句 ...

There are four levels to play, each divided into three stages. You start by learning the home row keys. Each stage builds on previous lessons, introducing new letters as you progress and giving you ...