Altair is found in what constellation?（） A: Hercules B: Cygnus C: Aquila D: Capricor
Altair is found in what constellation?（） A: Hercules B: Cygnus C: Aquila D: Capricor
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Altair is found in what constellation?（） A: Hercules B: Cygnus C: Aquila D: Capricor