By 1940, the pilot Jacqueline Cochran held seventeen official national and international speed records, and she earned them at a time when aviation was still so new for many of the planes she flew to be of dangerously experimental design.
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A and she earned them at a time when aviation was still so new for many of the planes she flew to be
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Bearning them at a time that aviation was still so new for many of the planes she flew to be
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Cearning these at a time where aviation was still so new that many of the planes she flew were
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Dearned at a time in which aviation was still so new such that many of the planes she flew were
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Eearned at a time when aviation was still so new that many of the planes she flew were
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正确答案: E