【单选题】When Apple showed the world Siri, I believe they showed us the next major【C1】______user 【C2】______ The idea of talking to computers is nothing new. It has, of course, been【C3】______in scifi novels, mo...
【简答题】A widely-used gas that is currently produced from fossil fuels can instead be made by an artificial leaf that uses only sunlight, carbon dioxide and water, and which could ually be used to develo...
【简答题】阅读理解 (共 5 小题,每小题 2 分,共 10 分) In a world with limited land, water and other natural resources ( 资源 ), the harm from the traditional business model is on the rise. Actually, the past decades has seen mo...