问题 单项选择题

全口义齿的个性排列,常模仿自然牙列异常的排列位置,以突出个性,表现自然美,以下排列方法哪项是错误的()

A.将上中切牙排成“外翻式”

B.中切牙整体向唇侧移动少许,侧切牙仍在原位置

C.上下前牙呈深覆关系

D.上颌侧切牙近中稍重叠于中切牙唇侧远中面的唇侧

E.上颌两侧尖牙颈部向唇侧突出明显

答案

参考答案:C

解析:

全口义齿前牙排列时应遵循覆[*]1mm,覆盖3mm的排牙原则,以便达到易于取得前伸合平衡、减小基托前腭部应力之目的。

阅读理解

Little Mike’s grandmother died weeks ago. He missed her very much. One afternoon Mike went to the city park where his grandmother used to go. There he saw an old lady. She looked very kind. She was sitting there, watching pigeons(鸽子). Little Mike went up and sat next to her. He took out his food and drinks and gave some to her. She smiled at him. Her smile was very sweet and Mike wanted to see it again. She seemed to understand him, so once again she smiled. Mike was very happy.

They sat there all the afternoon, eating and talking. As it was dark, Mike got up to leave. Before he left, he hugged the old lady and she gave him her sweetest smile.

When Mike got home, his mother was surprised by the happy look on his face. “ I met an old lady in the park. Her smile was like the smile I used to see on Grandmother’s face.”

The old lady also returned to her home happily. She told her son she had food and drinks with a little boy. “ He was as lovely as Bill.” She said. Her son was surprised, because he had never been so happy since Bill, her grandson, died weeks ago.

小题1:Little Mike went to the park and ________.

A.played with pigeons

B.fed pigeons

C.met an old lady

D.saw a friend of his grandmother’s小题2:The old lady’s smile showed ________.

A.she hated to meet the boy

B.she wanted to get some drinks

C.she missed her son

D.she liked the little boy小题3:Mike felt very happy because ________.

A.he gave the old lady some food and drinks

B.the old lady’s smile was like his grandmother’s smile

C.he met his grandmother in the city park

D.he saw many lovely pigeons in the park小题4:Mike and the old lady ________.

A.were good to each other(相互)

B.knew each other well

C.often met in the park

D.did nothing that afternoon小题5:What do we learn from the story?

A.When one feels unhappy, he must go to a park.

B.Old people are always kind and happy

C.Children should be polite to old people .

D.When people get on well, they feel happy.

单项选择题 B型题