患者，女性，76岁，全口义齿初戴3个月，诉美观，发音好，但咀嚼_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题案例分析题

患者，女性，76岁，全口义齿初戴3个月，诉美观，发音好，但咀嚼食物时间稍长牙槽嵴疼痛，义齿变松，有时脱落。检查：义齿就位再取下，固位力良好；左下牙槽嵴颊侧黏膜浅白色斑块3mm×5mm，咬合时下颌义齿滑动。

修复效果不佳原因可能是（）。

A.印模不正确

B.义齿稳定性欠佳

C.模型变形

D.基托变形不密合

E.牙槽嵴窄小

F.咀嚼时间过长

答案

参考答案：B

完形填空

I’m an operating engineer, running crane(起重机) in New York City. I was in the countryside, playing golf when we got the call that a plane had       the World Trade Centre. We checked out of the hotel immediately and started       our way downtown. When I got home, I called the rescue center and they told me to come       and get on the       list.
The next morning I went down to the       at about 5 A. M., and four hours later I       the call to come down to West Street. I called my wife and told her not to       me, and that I would stay in       with her. I took the subway. It stopped at West Fourth Street, so I had to       the rest of the way.
And somewhere in there I became       when I went into something I      . I once worked there in 1966 for the       of the World Trade Centre. On halfway on September 12, I was frightened to see the World Trade Centre was a huge pile, maybe ten       tall. And it was burning. I started to ask       in which my crane might be       a whistle blew suddenly warning us of some danger. I saw people running away and I really didn’t know what to do. So I did the same, too. It was as if they had       the bulls go in Spain and we were running through the street. People falling down, people       them up as they came by, and carrying them, just to get them out of the way, because something was extremely      . I didn’t even look back. We stopped running when we got to the Battery Tunnel, and I caught my       and said, “Oh, my God, I’m going to die.”
Then I   a little bit, thinking about what we should do next. As we started again we knocked into a fire chief officer and we asked, “What can we do to help you?”

A．be curious about

B．forget about

D．worry about

C．embarrassed

A．construction

C．destruction

B．centimeters

B．settled down

C．knocked down

单项选择题

高压柜应安装稳固，垂直误差应不大于开关柜高的（）%0.

A.2

B.3

C.4

D.5