单项选择题

A.蚊唾腺→人肝细胞→人红细胞→蚊胃→蚊唾腺
B.蚊唾腺→蚊胃→人肝细胞→人红细胞→蚊唾腺
C.人肝细胞→蚊胃→蚊唾腺→人红细胞→蚊唾腺
D.人红细胞→人肝细胞→蚊唾腺→蚊胃→蚊唾腺