瘀血所致的疼痛特点是

A．疼痛白天加重

B．疼痛夜间加重

C．疼痛午间加重

D．疼痛走窜不定

E．以上均非

Practising Chinese kung fucan not only____one's strength, but also develop one's character.       [ ]

A. bring up    

B. take up    

C. build up    

D. pull up