“When the stars threw down their spears,And water’ d heaven with their tears,Did he smile his work to seeDid he who made the Lamb make thee ”Questions:A. Who’s the poet of the quoted stanza, and what’s the title of the poemB. Whom does the “he” refer toC. What does the “Lamb” symbolize

隐孢子虫主要经过哪些途径传播（）

A.消化道

B.血液

C.空气

D.虫媒

E.口-肛性交