Questions on 'nasa' tag
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1
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1995
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0
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0
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1304
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0
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0
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609
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0
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0
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458
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0
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0
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484
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0
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0
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510
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0
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0
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509
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0
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0
answer
442
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0
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0
answer
339
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0
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1
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438
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0
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0
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56
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0
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1
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305
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0
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1
answer
302
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0
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0
answer
289
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0
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0
answer
289
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0
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0
answer
260
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0
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0
answer
269
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0
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0
answer
277
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0
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0
answer
280
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0
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0
answer
271
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0
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0
answer
322
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0
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0
answer
324
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0
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0
answer
272
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0
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0
answer
310
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0
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1
answer
330
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0
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1
answer
351
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0
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1
answer
208
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0
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1
answer
401
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0
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1
answer
416
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0
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0
answer
949
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0
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1
answer
701
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0
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1
answer
798
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0
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1
answer
713
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0
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1
answer
760
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0
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1
answer
775
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