伤科患者舌色淡白所主病为（）

A.阴寒血凝

B.津伤血滞

C.气血虚弱

D.瘀血凝聚

E.里热实证

The weather turned out to be fine yesterday. I _____ the trouble to carry my umbrella with me. [ ]

A. should have taken

B. could have taken

C. needn't have taken

D. mustn't have taken