Most ergonomic keyboard layouts fall into two categories: unibody (or Alice) and split. The former is a single board with the two halves of the keys rotated about 30 degrees apart at the bottom. The separation forms an A-shaped space between the keys — which has nothing to do with why it’s called an Alice layout, it’s just a happy coincidence. This subtle tweak pushes your elbows away from your ribs while keeping a straight line from your forearm to your middle knuckle. Using one, I pretty instantly felt more open along the front side of my body. This layout more closely resembles a traditional keyboard, so it should be easier for most folks to get used to than a fully split option.
'type': 'object',
，详情可参考91视频
IBM 当天收跌约 13%，报每股 223 美元，市值蒸发约 310 亿美元，创下自 2000 年互联网泡沫破裂以来的最差表现。
$93.95 $93 at Walmart
阿布扎比综合交通中心（ITC）2月26日宣布，在有驾驶员监督条件下，该局已监督特斯拉完成了其最新无人驾驶技术在当地的道路测试。特斯拉在阿布扎比的测试项目致力于在批准的监管框架内推进出行方式革新，为阿联酋建立一个先进驾驶辅助及自动驾驶技术的测试模型，同时寻求在安全要求与鼓励采用现代创新之间保持谨慎平衡。（财联社）