(2)最可能的诊断是( )
A.腰部棘上韧带炎B.腰椎结核C.腰椎骨髓炎D.单纯坐骨神经痛E.腰椎间盘突出症
参考答案:E
解析:[解释点评] 诊断为腰椎间盘突出症。
So suddenly ________that the animals in the zoo looked very frightened during the total solar eclipse (日全食).
A.did the sky turn dark
B.the sky did turn dark
C.turned the sky dark
D.was the sky turned dark
抽汽机组的可调整抽汽逆止门关闭应严密、连锁动作可靠,并必须设置有()关闭的抽汽截止门,抽汽逆止门一般靠近()安装。