颈椎管狭窄的典型临床表现是（）
A.四肢无力
B.头晕、头痛
C.双上肢疼痛
D.恶心、呕吐
E.束带感
参考答案：A
__________ the housing price, several measures have been adopted in the last two years.
A．Lowering
B．Having lowered
C．To lower
D．To have lowered
不属于TIA特征的症状是（）
A.双眼视力障碍
B.跌倒发作
C.眼动脉交叉瘫
D.不伴后循环障碍其他体征的意识丧失
E.短暂性全面性遗忘
