Only after he was brought to the police station did the young man ________ he had stolen some purses from other passengers.

A．participate

B．realize

C．summarize

D．acknowledge

患者，男，45岁，右侧后牙咬合不适2个月求诊。自述3个月前牙髓治疗后行右侧后牙固定修复，无自发痛史。检查发现右上第一磨牙为铸造金属全冠修复，右上第二前磨牙、第一磨牙和第二磨牙间有嵌食，口腔卫生情况差，牙龈 * * 充血水肿。

对疑似病灶牙要进一步进行检查，不恰当的是（）

A.叩诊

B.冷诊

C.热诊

D.牙髓电活力测试

E.X线检查

F.探诊