CR中可记录与读出X线影像信息的载体是()
A．胶片
B．磁盘
C．成像板
D．荧光屏
E．平板探测器
参考答案：C
Could you tell me ?
A．when will Kate come back
B．when Kate will come back
C．when does Kate come back
D．when did Kate come back
试述现代人和传统人在行为规范和价值观念等有哪些不同？
