—Was it under the tree ______ you went away talking to a friend?

—Sure. But when I got back there, the bike was gone.[ ]

A. that

B. when

C. where

D. while

“起于中焦，下络大肠”的经脉是

A．足阳明胃经

B．足太阴脾经

C．手少阴心经

D．手阳明大肠经

E．手太阴肺经