【名词&注释】
甲状腺功能减退症(hypothyroidism)、近视眼(myopia)、脾肾阳虚(yang deficiency of spleen and kidney)、甲状腺功能亢进症(hyperthyroidism)、虹膜睫状体(iris-ciliary body)、巨人症(gigantism)、密切相关(closely related)、睫状体炎(cyclitis)
[单选题]与泄泻发病密切相关(closely related)的内因为( )
A. 肾阳虚衰
B. 脾胃虚弱
C. 肝脾不和
D. 脾肾阳虚
E. 心肾不交