—Is this your hat?
—________. [ ]
A. Yes, it is
B. Yes, it isn't
C. No, this isn't
答案:A
-2的相反数的绝对值等于______.
确定受侵的颈神经根部位时,最有意义的症状是
A.颈痛
B.肩胛间痛
C.枕下区头痛
D.手感觉异常
E.臂痛