【名词&注释】
胰腺炎(pancreatitis)、临床表现(clinical manifestation)、脂肪酶(lipase)、血吸虫病(schistosomiasis)、结缔组织病(connective tissue disease)、脾肾阳虚(yang deficiency of spleen and kidney)、肝脾肿大(hepatosplenomegaly)、密切相关(closely related)、磷脂酶A(phospholipase a)、肾阳虚衰(deficiency of the kidney-yang)
[单选题]与泄泻发病密切相关(closely related)的内因为( )
A. 肾阳虚衰(deficiency of the kidney-yang)
B. 脾胃虚弱
C. 肝脾不和
D. 脾肾阳虚
E. 心肾不交