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  3. In 1915 Einstein made a trip to Gottingen to give some lectures at the invitation of the mathematical physicist David Hilbert. H

In 1915 Einstein made a trip to Gottingen to give some lectures at the invitation of the mathematical physicist David Hilbert. H

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问题     In 1915 Einstein made a trip to Gottingen to give some lectures at the invitation of the mathematical physicist David Hilbert. He was particularly eager—too eager, it would turn 【B1】______ to explain all the intricacies of relativity to him. The visit was a triumph, and he said to a friend excitedly: "I was able to【B2】______Hilbert of the general theory of relativity."
    【B3】______all of Einstein’ s personal turmoil at the time, a new scientific anxiety was about to 【B4】______. He was struggling to find the right equations that would 【B5】______ his new concept of gravity, 【B6】______ that would define how objects move【B7】______space and how space is curved by objects. By the end of the summer, he【B8】______the mathematical approach he had been【B9】______for almost three years was flawed. And now there was a【B10】______pressure. Einstein discovered to his【B11】______that Hilbert had taken what he had lectures and was racing to come up【B12】______the correct equations first.
    It was an enormously complex task. Although Einstein was the better physicist. Hilbert was the better mathematician. So in October 1915 Einstein【B13】______himself into a month-long-frantic endeavor in【B14】______he returned to an earlier mathematical strategy and wrestled with equations, proofs, corrections and updates that he【B15】______to give as lectures to Berlin’s Prussian Academy of Sciences on four【B16】______Thursdays.
    His first lecture was delivered on Nov. 4,1915, and it explained his new approach,【B17】______he admitted he did not yet have the precise mathematical formulation of it. Einstein also took time off from【B18】______revising his equations to engage in an awkward fandango with his competitor Hilbert. Worried【B19】______being scooped, he sent Hilbert a copy of his Nov. 4 lecture. "I am 【B20】______ to know whether you will take kindly to this new solution," Einstein noted with a touch of defensiveness.
【B17】
选项 A、so
B、since
C、though
D、because
答案C
解析 考查逻辑关系。此处需要连词引导让步状语从句，根据逻辑，句意应为“他在1915年11月4日发表了第一次演讲解释了他的新方法，虽然他也承认他还没有精确的数学公式来表示”。故选C．though。
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