[col]: https://leg.colorado.gov/bill_files/111670/download
Team did not attend Trump’s State of the Union address
，详情可参考91视频
Perhaps it’s the biggest question science has left to answer, how did life begin? Now, molecular biologists in Cambridge university have discovered tiny molecules of RNA which they say might provide some clues. Science journalist and author Philip Ball explains what we know and whether we’ll ever find the origins of life on earth.
No base class to extend, no abstract methods to implement, no controller to coordinate with. Just an object with the right shape.