A.≤11.6% B.0~12.6% C.0~14.6% D.11.6%~14.6% E.>14.6%
A.人是唯一的終宿主 B.成蟲寄生在小腸 C.經(jīng)口感染 D.感染階段為蟲卵 E.感染階段為囊尾蚴
A.鉤蟲 B.血吸蟲 C.蟯蟲 D.姜片蟲 E.肝吸蟲