题目内容

甲型肝炎病毒的主要传播途径是

A. 呼吸道传播
B. 消化道传播
C. 血液接触
D. 蚊虫叮咬

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提示HBV处于复制状态的抗体是

A. 抗-HBe
B. 抗-HBc IgM
C. 抗-HBc IgG
D. 抗-HBs

能保护机体免受HBV感染的抗体是

A. 抗-HBe
B. 抗-HBs
C. 抗-HBc IgM
D. 抗-HBeIgG

HBV包膜蛋白的主要成分是

A. HBS Ag
B. HBeAg
C. HBcAg
D. S1蛋白

How are music and culture related to each other?Music his its ___1_ in culture and music is a perfect window to get an insightful __2_ of the English culture. And both music and culture change along with the _3_ trends. Music is fun, _4_ and 5___.