• 2022-06-17 问题

    The outermost structure of the ear of anuran amphibians is a/an ( ). A: pinna B: semicircular canal C: tympanic bulla D: tympanic membrane E: auditory meatus

    The outermost structure of the ear of anuran amphibians is a/an ( ). A: pinna B: semicircular canal C: tympanic bulla D: tympanic membrane E: auditory meatus

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