第9题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. They are a happy couple. B. They axe tiresome. C. They are bad-tempered. D. They are very good people. 参考答案:D 答案解析:[听力原文] 11. M: How are your new neighbors W: They are wonderful people. I am happy now. I was
第28题: [单项选择]
提示乙肝病毒复制并具有强传染性的指标是 A. HBsAg B. HBeAg C. 抗-HBs D. 抗-HBc E. 抗-HBe 参考答案:B 答案解析:[解题思路] HBsAg是HBV感染诊断指标之一,也是制备疫苗的主要成分。HBeAg阳性表示HBV在体内复制,血液传染性强,持续阳性表示感染转为慢性。抗HBs是主要中和抗体,阳性表示病情好转或疫苗接种