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Facebook has taken over a start-up named CTRL-Labs, which is developing devices that can pick up electrical signals from the brain and transmit them to a computer. CTRL-Labs has designed a wristband that can identify the signals the brain sends to the hand telling it to move, and decode (解码) them. It could then transmit that command — for example, to press a button — to a computer or other devices.It also captures (捕捉) your intention”, said Facebook VR president Andrew Bosworth. “So you can share a photo with a friend using an imperceptible (极细微的) movement or just by, w一项工程，甲独做10天完成，乙独做15天完成．写出甲、乙工作效率的比，并化简．