—What are they used for, Michael?        

—You can change the style of your shoes and make the shoes         from casual to dressy.            [ ]

A. to go

B. going

C. go

患者吐血缠绵不止，时轻时重，血色黯淡，神疲乏力，心悸气短，面色苍白，舌质淡，脉细弱。其治法是：（ ）

A．健脾和胃，宁络止血

B．和中宁络，凉血止血

C．益气养阴，宁络止血

D．健脾益气，摄血止血

E．健脾升阳，化瘀止血