We’d like to go and thank him ourselves, ____________we don’t have his address.

A．so

B．and

C．or

D．but

判断有无咬合异常是通过检查

A．上下牙列咬合的石膏模型

B．下颌运动时牙合接触

C．骀功能以及肌肉和颞颌关节健康

D．颞颌关节健康情况

E．有无肌肉疼痛