The main advantage of streaming is convenience. You can have access 5.__________ thousands of movies and songs at the touch of a button. Also, by only accessing content, you don't have to worry about storage space. You'll never fill 6.__________ your hard disk with MP3s, or your bookshelf with DVDs. Streaming is good for the environment too. Streaming files uses much 7.__________ energy than creating, shipping and watching or listening to DVDs and CDs.
But some criticize streaming for its bad sound and image quality. A CD will probably sound a lot better than 8.__________ streamed song, and a movie on Bluray will look better than a streamed one too.
Ⅲ.阅读理解
It was a modest test drive: moving forward 15 feet, turning in place 120 degrees, then backing up about 8 feet. The entire trip took about 16 minutes.
But for the team behind Curiosity, the sixwheeled NASA rover(探测器) that landed on Mars 17 days ago, the first tracks on Mars were an exciting milestone. “It couldn't be more important,” Peter C. Theisinger, the mission's project manager, said. “I mean, we built a rover. So unless the rover moves, we really haven't accomplished anything.”
Curiosity, which was launched on November 26, 2011, is to spend about a couple of years traveling through a 96milewide crater(陨石坑)and up a mountain at the center of the crater, exploring for signs that early Mars could have been habitable for life.
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