颈椎病主要体征为
A.“4”字试验阳性
B.伸肌腱牵拉试验(Mills征)阳性
C.杜加(Dugas)征阳性
D.直腿抬高试验(Lasegue)阳性
E.压头试验阳性
参考答案:E
____ winter is still with us, and will be for a few more weeks, warm days may still be in the forecast for
your area. [ ]
A. As long as
B. Even though
C. Now that
D. Ever since
工程咨询业的特点是( )。
A.弹性任务
B.多次性
C.时效性
D.约束性
E.预测性