题目内容：
早产儿视网膜病变可分为几期
A．3期 B．4期
C．5期
D．1期
E．2期
参考答案：
答案解析：
单选题：早产儿视网膜病变可分为几期
- 题目分类：临床执业医师
- 题目类型：单选题
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B．4期
C．5期
D．1期
E．2期
B．4期
C．5期
D．1期
E．2期
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