最有助于鉴别诊断的辅助检查为
A．颈椎X线片B．颈段X线断层摄片C．肌电图D．颈段MRIE．放射性核素扫描
参考答案：D
If English ______ included in the examinations, few students would choose it.
A．weren’t
B．isn’t
C．hasn’t been
D．hadn’t been
