Would you please help me move the piano?________

A．You’re welcome.

B．It’s a pleasure.

C．With pleasure.

D．Don’t mention it.

芡实的功效是（）

A.清热燥湿，杀虫止带，止血

B.益肾固精，明目

C.补益肝肾，收敛固涩

D.益气，除热止汗

E.益肾固精，补脾祛湿