问题 单项选择题

男,60岁。缺失,近中舌向倾斜、不松动,左侧下颌隆凸明显,舌侧前部牙槽骨为斜坡型,口底深,余牙正常。拟采用可摘局部义齿修复

以下修复设计与措施中错误的是()

A.取解剖式印模

B.适当扩大游离端基托伸展范围

C.减小人工牙的颊、舌径

D.减小人工牙的近、远中径或减数

E.设计近中支托

答案

参考答案:A

解析:

游离缺失应该取功能式印模。

阅读理解

阅读理解。

      It is possible to do many simple tricks with numbers. Here is one trick. It has seven steps.

      First, write down your house number. For example, if your address is 73 Lemon Street, you would write

down 73.

      Next, double it. In other words, multiply it by two. Then, add five to this doubled number. For example,

if your address was 73and you doubled it, you would get 146. Then, if you added five, you'd get 151. 

      So, to repeat the first three steps, write down your house number, double it, and add five.

      Fourth, multiply this number by 50. In our example here, if you multiply 151 by 50, you'll get 7550.

      The fifth step is to add your age to this total. For example, if you're 26 years old, you should add 26 to this

total. In our example here, the result would be 7550 plus 26, you'll get 7576.

      Sixth, you have to add the number of days in a year, which is 365. In our example here, 365 added to 7576

is 7941.

      The seventh and final step is this: subtract 615 from the number that you have. In our example, 7941

minus 615 is 7326.

      The result here, 7-3-2-6, is the trick. The first part of the number is the address and the last part of the

number is the age of the person. That is, 73 is the address that we started with, and 26 is the age that we

used.

      If you follow these seven steps with any address and the age of any person. You will get the same result.

1. According to the trick, what number can you get if you are 16 years old and your house number is 85? [ ]

A. 1685

B. 8516

C. 8165

D. 1658

2. What's the correct match for"multiply, plus, and minus"? [ ]

A. "×, +, and-"

B. "÷, -, and +"

C. "×, -, and+"

D. "÷, +, and-"

3. How can your age number appear at the last part of the result? [ ]

A. It's really a trick.

B. By taking all the steps except Step2 and Step 3.

C. By taking Step 6and Step 7.

D. By taking all the steps.

4. What's the secret of the trick? [ ]

A. It's impossible to know.

B. By taking Step 2 and Step 4, we get the formula(公式):your address number ×2×50.

C. By taking all the steps except 1 and 2, we get the formula: 5×50+your age number+365-615=your

     age number.

D. Both B and C.

单项选择题