[单项选择]Televisions enable us to see things happen almost at the exact moment ______. A. which they are happening B. they are happening C. which they happen D. they have happened
第18题: [单项选择]A Tale of Two Cities was written by ______. A. William Makepeace Thackery. B. David Herbert Lawrence. C. Charles Dickens. D. James Joyce. 参考答案:C 答案解析:本题考查英国文学作品。狄更斯(Charles Dickens,1812—1870)是英国浪漫主义文学作家。其代表作有A Tale of Two Cities(《双城记》),David Copperfi
第22题: [单项选择]原发性高血压的诊断标准是()。 A. 收缩压≥18.7kPa(140mmHg)和(或)舒张压≥12.0kPa(90mmHg) B. 收缩压≥20.0kPa(150mmHg)和(或)舒张压≥12.7kPa(95mmHg) C. 收缩压≥20.0kPa(150mmHg)和(或)舒张压≥12.0kPa(90mmHg) D. 收缩压≥21.3kPa(160mmHg)和(或)舒张压正常 E. 舒张压≥13.3kPa(100mmHg)和(或)收缩压正常 参考答案:A 答案解析:原发性高血压的诊断标准是收缩压≥140mmHg和舒张压≥90mmHg。