第21题: [单项选择]急性HBV感染的指标是( )。 A. HBsAg B. HBsAb C. HBeAg D. HBeAb E. HBcAb 参考答案:E 答案解析:[解析] 本题考查要点是“急性HBV感染的指标”。乙型肝炎病毒核心抗体是乙型肝炎病毒核心抗原(HBcAg)的对应抗体,也非中和抗体。虽不能抑制HBV的增殖,但却是反映肝细胞受到HBV侵害后的一项指标,
第28题: [单项选择]{{B}} Questions 11-18 are based on the conversation you have just heard.{{/B}} A. The meeting is going on in Room 241. B. The meeting is cancelled. C. The meeting is about space technology. D. The meeting is held in the conference room. 参考答案:D 答案解析:[听力原文]
W: Excuse me, can you tell me where the Students’ Union meeting is
M: It was going to meet