Questions on 'space technology' category
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78
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68
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726
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746
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274
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261
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706
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757
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342
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348
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286
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260
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0
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0
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722
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0
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772
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0
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answer
312
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0
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0
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323
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0
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0
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766
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0
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94
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0
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0
answer
280
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0
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0
answer
295
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0
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0
answer
321
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0
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0
answer
333
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0
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0
answer
314
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0
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157
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0
answer
211
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answer
380
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0
answer
279
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0
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94
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0
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171
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129
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143
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117
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answer
158
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answer
158
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answer
323
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