第17题: [单项选择]有关PPD皮试,以下哪一项不正确() A. 接种后应在24、48、72小时分别记录反应结果 B. PPD结果呈阳性,确定有结核病存在 C. PPD结果阴性,不能排除结核病的诊断 D. 测定反应硬结,应当取纵、横两者平均直径来判定反应 E. 皮内注射0.1ml相当于PPD5个单位 参考答案:B
第30题: [单项选择]Why did the woman have to be leaving( ) A. Because she had to go home. B. Because she had to get up early tomorrow morning. C. Because she had tired. 参考答案:B