第5题: [单项选择]预防和控制伤寒的主要措施是 A. 早期隔离和治疗病人 B. 检出带菌者,接触者进行医学观察 C. 伤寒菌苗预防接种 D. 疫区消毒 E. 切断传播途径 参考答案:E
第6题: [单项选择]After the writer had arrived in India ______. A. he spent years writing about the place he lived in B. he took quite a long time finding a suitable place to live C. he spent years looking for a certain village D. he lived in a Himalayan community for many months 参考答案:B
第21题: [单项选择]对儿童期高血压病因的叙述,哪项是错误的() A. 高血压包括原发性和继发性 B. 儿童期高血压绝大多数是继发性高血压 C. 继发性高血压多能找到原发病因 D. 儿科最常见的是肾实质性高血压、肾血管性高血压 E. 在儿科,原发性高血压占40%左右 参考答案:E 答案解析:小儿高血压80%以上为继发性高血压。