You may have encountered keyboards with an optional lift at the back of the board, raising the top keys higher than the space bar. Every set of hands is different, but for most people, pulling the backs of the hands towards the forearms increases strain. Negative tilt has the opposite effect by sloping in the other direction, lowering the top number keys while raising the edge with the spacebar. Many Alice and some split keyboards offer an optional negative tilt. I found it was more comfortable to enable that feature when I’m standing, and I preferred to have the keys flat when sat at my desk.
他們表示，越來越多證據顯示，有些線上調查並不可靠，尤其是在呈現關於年輕族群的數據時，以及當受訪者參與調查可獲得報酬時。
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According to Reddit, that human element it key.。关于这个话题，51吃瓜提供了深入分析
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