试题与答案

关于融合牙的描述,下列哪项是正确的() A.两个基本发育完成的牙齿由增生的牙骨质将其

题型:单项选择题 A1型题

题目:

关于融合牙的描述,下列哪项是正确的()

A.两个基本发育完成的牙齿由增生的牙骨质将其结合在一起

B.一个牙胚发育而成的双牙畸形

C.牙齿数目不少

D.冠部不分离而根部分离

E.相邻两个牙结合,牙本质分开

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A,B,D解析: 我国目前已经在证券交易所上市的公司从形成角度可分为五类:①历史遗留问题企业;②1994年7月1日《公司法》生效前成立的定向募集公司;③2006年1月1日《公司法》修订实施前发起设立的股份...

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书面表达。

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其中的三位同学介绍如下:

Betty: I'm happy that I'm making progress. I have done much better than before.

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Anne: I spent a lot of time on science but I didn't do as well as I wanted to. It's hard to believe.

现在,请你根据三位同学的介绍完成以下总结性发言。

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     I'm very happy that many of you have shared your learning experiences with the class. Betty is

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                                                                                                                               Thank you.

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