望舌苔，苔灰而润，见于（）

A.痰湿阻滞

B.热入营血

C.火炽伤津

D.寒湿凝滞

E.湿热阻滞

To _____ good relationships with your teachers and classmates ,you should learn to share ups and downs with them.

A．keep up

B．add up

C．bring up

D．take up.