We don't need to do extra work this evening. The day's work was almost ______ now.[      ]

A. at the end  

B. at an end  

C. at one end    

D. at our end

关于张力性头痛的叙述，错误的是（）

A.这是最常见的原发性头痛病

B.伴有肌肉紧张或由肌肉紧张引起

C.恶心、呕吐不是这种头痛的典型特点

D.这种头痛一般较轻，不致残

E.一般不需医学上的关心