患者，女，45岁，8|8和8765|8缺失，口腔检查可见，67间食物嵌塞

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问题单项选择题共用题干题

患者，女，45岁，8|8和8765|8缺失，口腔检查可见，67间食物嵌塞，缺失牙区牙槽嵴丰满，余牙正常。某医师设计4|4作基牙，4|三臂卡，4间隙卡环。

为了减轻对4的扭力，应在其上选用的卡环为（）。

A.双臂卡环

B.隙卡

C.BPI卡环组

D.联合卡环

E.延伸卡环

答案

参考答案：C

填空题

排序题。（把下面的句子整理成一段通顺的话，并加上题目）

（　）耳边响起了国歌声，我又兴奋又紧张，几乎握不住绳子。

（　）第一次升旗将永留在我的记忆中。

（　）本周该我们班升旗，谁会当升旗手呢？

（　）我真自豪，决心从现在起要为国旗争光。

（　）上课时老师选我当升旗手。

（　）随着国歌声，五星红旗徐徐升上旗杆顶端。

（　）升旗时，我和另一名升旗手向旗杆走去。

补全对话，情景问答

用恰当的词语填空，完成对话。

L: Your sister's gone to Shanghai, 1______ she?

M: Yes.

L: How long has she been there?

M: She's been there since 2010.

L: Oh. It's about a year already! Have you 2______ from her?

M: Yes, of course. Very often. She wrote to me about a week ago and said she was quite busy there.

L: I see. Are you 3______ to write to her soon?

M: Soon? Look! I am writing a letter to her now.

L: Really? Will you please give my best 4______ to her?

M: Of course I 5______. Thank you.