视觉敏度的发展,首先靠眼的()的变化来调节。
A.晶状体
B.视网膜
C.视神经
D.视觉色素
正确答案是A
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Passage 5 Questions 21 to 25 are based on the following passage. Storytelling allows families to transmit family lore and values from parents or grandparents to children, and to help children mature, make sense of