第31题: [单项选择]一位28岁的男性风湿性心脏病患者,近半月来发热,T38.3℃,右下睑结膜见一出血点,双肺无啰音,脾肋下可扪及边缘,双下肢皮肤少数紫癜。血红蛋白100g/L,白细胞12×109/L,中性粒白细胞75%,血小板150×109/L。可能的诊断是(). A. 脾功能亢进 B. 过敏性紫癜 C. 急性白血病 D. 再生障碍性贫血 E. 亚急性感染性心内膜炎 参考答案:E 答案解析:该患者具备风心病史,症状有发热,体征有贫血、心脏杂音、脾大,周围体征(出血点、紫癜),且血项偏高而肺部无明显感染体征,可诊断为亚急性感染性心内膜炎
第36题: [单项选择]Counting is different from number sense in that counting is ______. A. dependent on simpler mental activity B. a kind of ability possessed by man C. found in animals as well as man D. the ability to distinguish differences in small sets of objects 参考答案:B 答案解析:相关内容见第二段第1、2两句中对计数能力与Number Sense两者区别的分析。