醛固酮分泌()
A.肺
B.肾上腺皮质
C.肾上腺髓质
D.肾
E.肝
参考答案:B
My best friend Neil is ________ honest boy. You can believe him.
A.a
B.an
C.the
D./
粪便中发现巨噬细胞有助于诊断()
A.上消化道出血
B.霍乱
C.急性细菌性痢疾
D.肠隐孢子原虫感染
E.直肠癌