第7题: [单项选择]{{B}} Questions 11 to 20 are based on the conversation you have just heard.{{/B}} A. To keep his old car and get a new one. B. To leave it in the garage to be repaired. C. To sell his car for a new one. D. To get his car repaired later. 参考答案:C 答案解析:[听力原文]
W: You’ re back late. I was worried. How’s the car What did you find out about it
M: The
第8题: [多项选择]加工程序结束用()中的一个。 A. M04 B. M09 C. M02 D. M30 参考答案:C, D
第30题: [单项选择]患者女性,35岁,因“胸痛、咯血2天”来院。心脏超声提示右心室肥大,肺动脉压力50mmHg,诊断考虑原发性肺动脉高压,关于肺动脉高压的描述下列哪项是错误的 A. 原发性肺动脉高压可发生于任何年龄,多见于育龄期妇女 B. 可能与遗传因素、自身免疫及肺血管收缩等因素有关 C. 早期症状不明显,确诊需行右心导管检查 D. 可导致慢性肺源性心脏病 E. Na+通道缺陷参与了肺血管收缩的发病机制 参考答案:E 答案解析:[解析] 原发性肺动脉高压患者存在电压依赖性K+通道功能缺陷,K+外流减少,细胞膜处于去极化状态,Ca2+进入细胞内,使血管处于收缩状