Sorry, these two tables are already ______. You may book the one over there.

A．preserved

B．deserved

C．observed

D．reserved

疱疹性口腔炎与鹅口疮的共同特点是（）。

A.淋巴结肿大

B.口腔黏膜损伤

C.疼痛、流涎

D.发热

E.进食困难