题目内容

口腔中能感受到酸甜苦辣咸等味觉的是____。

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造成错颌畸形的主要原因有遗传因素、后天因素以及____。

____可表现为溃疡呈表浅淡红以后可出现增生，牙槽突骨膜及骨质，进而出现牙松动，并可发生脱落。

He decided to give his son everything he owned after his death.

A. gained
B. had
C. got
D. caught

治疗牙周炎最常用的抗生素是___。