–What does your friend look like?

–She is of medium build, and she has _______ hair.

A．sad

B．long

C．busy

D．small

龈上菌斑通常为（）

A.光滑面菌斑与邻面菌斑

B.附着菌斑与非附着菌斑

C.舌侧菌斑与颊侧菌斑

D.光滑面菌斑与点隙裂沟菌斑

E.点隙裂沟菌斑与根面菌斑