问答题

The pupil of the eye responds to the change of light intensity.

答案：瞳孔是眼睛中对光线强度变化作出反应的部分。瞳孔的大小由虹膜控制，虹膜是一层环形和放射状的肌肉组织。当光线强度增加时，虹膜...

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