What we need is a patient teacher, __________ who listens to us students.

A．he

B．one

C．the one

D．that

对虚实错杂证运用先攻后补治则的主要根据是

A．先祛邪不会伤正

B．先扶正可致留邪

C．正气虽虚尚可耐攻

D．标症紧急先治其标

E．正气虚弱先治其本