第11题: [单项选择]According to Hoyle and his friends at Cambridge A. the explosion occurred much earlier than Lemaitre suggested. B. it is hard to see how matter could be formed in this way. C. the expansion of the universe is not a real one. D. new material is continually being created. 参考答案:D 答案解析:[解析]由短文第三段可知,剑桥的Hoyle和他的朋友认为,新物质一直在被创造。故应选D。
第31题: [单项选择]案例摘要:患者,女性,45岁。近两年经常头痛、头晕,耳鸣,心悸,记忆力减退,手脚麻木,近1年来于清晨睡醒时经常出现心前区疼痛并向左肩部放射。就诊时,血压170/105mmHg,心电图表现为弓背向下型S-T段抬高若患者经X线检查发现左心增大、肺淤血、肺静脉影增宽,经超声心动检查发现其左心室舒张末期容积增加、每搏排出量和射血分数降低、左心室内径和左心房内径扩大,则应使用的降压药物是() A. 硝普钠 B. 利尿剂 C. 血管紧张素转换酶抑制剂 D. 钙拮抗剂 E. β受体阻滞剂 参考答案:C