患者，男性，40岁，2周来右侧后牙咬物不适，冷水引起疼痛。近2日，夜痛影响睡眠，并引起半侧头面、面部痛，痛不能定位。检查时见右侧上、下第一磨牙均有咬合面龋洞。

根据患者疼痛的性质，患牙最可能诊断是（）。

A.急性牙髓炎

B.急性冠周炎

C.牙龈 * * 炎

D.三叉神经痛

E.急性中耳炎

Speaker A: I wonder what's happened to Jerry. He hasn't been around for at least two weeks.Speaker B: ______

A．Yes, two weeks halve passed before you know where you are.

B．Jerry is quite introvert. He doesn't like to let others know much about him.

C．Do you know the reason for his absence

D．He took a leave to see his mother in Europe.