— I’m so tired, working all morning on the farm.

— Why not take a rest , then?

— ____.     

A．Because I can’t afford it

B．Maybe I should

C．I don’t know

D．Sorry, I can’t tell you

女，42岁。久病肌衄，头晕心悸，身疲乏力，低热，面色无华，甲爪色淡，失眠健忘，食少纳呆，月经量多，舌淡苔少，脉细弱。该病人中医病机为 （）

A.气血亏虚，外受风邪

B.气不统血，血虚阳浮

C.气虚血脱

D.亡血气脱

E.血瘀致虚，气血亏虚