判断脊柱骨折脱位是否并发脊髓损伤，最重要的检查是
A．CT检查
B．X线摄片
C．脊髓造影检查
D．神经系统检查
E．MRI检查
参考答案：D
In a recent survey, young people had to imagine _____ they would miss if they lived on a desert island and
90% chose music first. [ ]
A. that
B. how
C. whether
D. what
纵向进给量
