2. 外语
  3. All that we really need to plot out the future of oar universe are a few good measurements. This does not mean that we can sit d

All that we really need to plot out the future of oar universe are a few good measurements. This does not mean that we can sit d

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问题     All that we really need to plot out the future of oar universe are a few good measurements. This does not mean that we can sit down today and【B1】______the future course of the universe with anything like【B2】______.There are still too many things we do not know about the way the universe is put together. But we do know【B3】______what information we need to fill in our knowledge, and we have a pretty good【B4】______of how to go about getting it.
    Perhaps the best way to think of our present situation is to【B5】______a train coming into a switchyard.  All of the switches are set before the train arrives, so that its path is completely【B6】______. Some switches we can see, others we cannot. There is no doubt if we can see the setting of a switch: we can say with confidence that some【B7】______futures, will not be realized and others will.  At the unseen【B8】______, however, there is no such certainty about it.【B9】______. The unseen switches are the true decision points in the future, and what happens when we arrive at them determines the entire subsequent course of events.
【B10】______, but after that there are decision points to be dealt with and possible fates to consider.【B11】______.
【B9】
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答案Swimming times were also faster in Athens than in Sydney in 2000, but by an even slimmer margin than track performances
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大学英语四级

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