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【单选题】
关于角膜透明原因的描述,下列哪项是错误的A.
角膜上皮细胞层数多，更新慢
B.
角膜基质无血管
C.
角膜上皮基部平坦，无黑素细胞
D.
角膜基质胶原原纤维有规律排列
E.
角膜基质富含有水分
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皮皮学刷刷变学霸
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A.
Would you like to take a message?
B.
Would you like to leave a message?
C.
I can help to give a message.
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