题目内容：
甲状腺功能亢进症的常见环境因素有（请从以下5个备选答案中选4个正确答案）（ ）
A．感染 B．创伤
C．劳累
D．精神刺激
E．日光照射
参考答案：
答案解析：
多选题：甲状腺功能亢进症的常见环境因素有（请从以下5个备选答案中选4个正确答案）（ ）
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B．创伤
C．劳累
D．精神刺激
E．日光照射
B．创伤
C．劳累
D．精神刺激
E．日光照射
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The writer decided to quit smoking partly because.A．she could not afford any mor
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