题目内容
按键消抖常用的有软件延时消抖和使用专用接口芯片的硬件电路消抖两种方式。
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键盘主要分为两类:非编码键盘和编码键盘。非编码键盘常见的有:独立式键盘和矩阵式键盘两种结构。
PC机的键盘属于非编码键盘。
确定矩阵式键盘上某个键被按下常用行/列扫描法。
A) dependentB) designedC) fastD) flyingE) gainedF) giveG) growingH) launchI) policyJ) prospectK) ratherL) reliableM) signalN) successfulO) treatmentsSigns banning cell-phone use are a familiar sight to anyone who has ever sat in a hospital waiting room. But the1popularity of electronic medical records has forced hospital-based doctors to become 2 on computers throughout the day, and desktops--which keep doctors from besides--are3giving way to wireless devices.As clerical loads increased, “something had to4 , and that was always face time with patients,” says Dr. Bhakti Patel, a former chief resident in the University of Chicago’s internal-medicine program. In fall 2010, she helped5a pilot project in Chicago to see if the iPad could improve working conditions and patient care. The experiment was so6that all internal-medicine program adopted the same7 in 2011. Medical schools at Yale and Stanford now have paperless, iPad-based curriculums. “You’ll want an iPad just so you can wear this” is the slogan for one of the new lab coats8with large pockets to accommodate tablet computers.A study of the University of Chicago iPad project found that patients got tests and9faster if they were cared for by iPad-equipped residents. Many patients also10a better understanding of the illnesses that landed them in the hospital in the first place.
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