第11题: [单项选择]What is the reason why so many people are ill A. The man has a bike. B. The woman has a bike. C. The woman won’t lend her bike. 参考答案:B 答案解析:[听力原文] F: Excuse me. I didn’t hear what you said. M: I asked if you could lend me your bike. 第12题: [单项选择]对于透视及摄影的说法,下列哪项说法是正确的() A. 对脊柱,骨盆的观察不受限 B. X线透视时只要荧光板够亮,无需暗适应 C. 透视影像的空间分辨率更高 D. 可动态观察心脏、大血管搏动 E. X线摄影时用增感屏,可增加辐射剂量 参考答案:D