【简答题】A new planet more like Earth was discovered and regarded as a likely future home for human. The planet contains both land and water with average temperatures around 22℃. It is 600 light years from...
【简答题】Here are four messages on Alan Marshall’s answer phone. Monday 9:21 Alan? Alan, if you’re at home, please answer the phone. Are you really not there? Well, I’d just like to say that I’m really annoye...