第一句: In its 16 years of operation it has found the first convincing evidence for the existence of black holes, made observations supporting the theory that the universe’s expansion is accelerating and confirmed that dark matter exists.
第二句: The trouble is, as soon as you’ve been given a clean bill of health you’re back at your desk, facing the same situation that led to depression and compulsive behavior problems in the first place.
第三句:Adding a Bluetooth chip to a phone now costs very little—around $2, down from $20 in 2001—but allows the manufacturer to increase the price of the handset by far more, and opens up a new market for high-margin accessories.
轻浮的粢奁贶 发表于 14-4-29 00:21
1.在它十六年的工作中它发现了证明黑洞存在的第一个令人信服的证据,这个证据直观的证明了宇宙是加速扩张的 ...
欢迎光临 Free考研资料 (http://test.freekaoyan.com/) | Powered by Discuz! X3.2 |