一36岁患者,临床上先出现脊髓的压迫症状,后期出现缺血性损害,应考虑()
A.脊柱病变
B.脊髓外硬膜内病变
C.脊髓硬膜外病变
D.脊髓和脊柱的病变
E.脊髓内病变
参考答案:E
营养性缺铁性贫血的一般表现不包括( )
A.皮肤黏膜苍白 B.食欲下降C.疲乏无力 D.异食癖
We ______ last night, but we went to the concert instead.
A.must have studied
B.might study
C.should have studied
D.would study