第9题: [单项选择]传染性最强的是() A. HBsAg+、HBeAg+、Anti-HBe-、Anti-HBc+、Anti-HBs- B. HBsAg+、HBeAg-、Anti-HBe-、Anti-HBc+、Anti-HBs- C. HBsAg+、HBeAg-、Anti-HBe+、Anti-HBc+、Anti-HBs- D. HBsAg-、HBeAg-、Anti-HBe-、Anti-HBc+、Anti-HBs- E. HBsAg-、HBeAg-、Anti-HBe+、Anti-HBc+、Anti-HBs- 参考答案:A
A. grammatical structures B. sound patterns C. vocabularies D. hierarchy 参考答案:C 答案解析:细节题。根据文章第二段中的They fall behind our Western languages not in their sound patterns or grammatical struc