—________

—It's green.  [ ]

A. Is it your green coat?

B. What colour is it?

C. Whose coat is it?

D. Where's your coat ?

对一个疑诊为脊髓空洞症的患者，首选的检查是()

A．脊髓MRI

B．脊柱平片

C．脊管空气造影

D．脊髓血管造影

E．脊管碘水造影