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问题 单项选择题

从牙体的纵剖面可见组成牙体硬组织下列各项中是哪些

A．牙釉质

B．牙骨质

C．牙颈

D．牙髓

E．牙本质

答案

参考答案：A,B,E

解析：牙体硬组织包括牙釉质、牙本质、牙骨质。

单项选择题

企业财产综合险与基本险是我国企业财产保险的常用险种，两者的主要区别在于（）。

A.投保人不同

B.投保财产不同

C.保险责任不同

D.赔偿方式不同
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单项选择题

Which of the following statements is true in the Grammar-Translation Method（）

A. The first language was maintained as the reference system in the acquisition of the second language.

B. The second language was maintained as the reference system in the acquisition of the first language.

C. Latin was maintained as the reference system in the acquisition of the second language.

D. Latin was maintained as the reference system in the acquisition of the first language.
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