第2题: [单项选择]骨显像探测骨病变最主要的优点是()。 A. 灵敏度高 B. 特异性高 C. 准确性高 D. 假阳性率低 E. 假阴性率高 参考答案:A
第3题: [单项选择]Where are the tickets now A. In the man’s jacket. B. In the woman’s hand. C. In their hom 参考答案:C 答案解析:[听力原文] F: Are you sure that you have got the tickets in your pocket M: Oh, I’m sorry. They ar