问题 多项选择题

患者李某,61岁男性,缺失,来院就医,口内检查,牙周组织健康,余留牙无松动,无倾斜也未见明显倒凹,取模做整铸支架可摘局部义齿修复。

为获得一副精确的工作模型,除检查印模外还应对印模进行处理,下面哪项处理方法是正确的()

A.用流水冲洗印模中的血和唾液

B.印模中的食物残渣使用雕刀刮除

C.印模冲洗干净后用印模消毒剂进行灭菌

D.及时灌注藻酸盐印模,避免失水而体积收缩

E.印模石膏所取印模在表面涂分离剂后再灌模型以上都正确

答案

参考答案:A, C, D, E

阅读理解

     You might have such problems with a friend as follows:

     New friends replace an old friendship. You used to walk home from school with your friend, and

share everything. Now your friend is with someone else all the time and is always "too busy" for you.

One of your friends reveals a secret. You can not believe your ears. The deep, dark secret you shared

with your best friend was repeated back to you by someone you hardly know. Your friend told! Why

has your friend turned against you?

     These things hurt you. They make you feel angry and sad. In each situation your friendship would feel

threatened. When you are upset with someone, it is a good idea to go off by yourself and sort out your

feelings. Go for a walk, talk to yourself, and look at what you feel. Allow your anger to explode where

no one is around to hear you. Then calm down. Think through what you want to say to your friend.

     It helps to stand back and take a fresh look at your friendship. Just because you have been very close

to someone but it does not mean you are linked together or that you own one another. There should be

room in your friendship for other friends, higher achievements, slips of the tongue, sometimes a conflict is

a sign that you need to change the kind of friendship you have.

     It also helps to put yourself in your friend's shoes. What would you do if you found that you had more

fun with a new friend? What if you told your friend's secret to someone when you did not mean to? It is

painful to be the other, too.

1. What is the passage mainly about?

A. How to make friends with others.

B. How to solve some problems you may have with your friends.

C. How to get along with your friends.

D. How to avoid being hurt by your friends.

2. The underlined word "reveals" in paragraph 3 probably means "______".

A. treasures

B. records

C. forgets

D. lets out

3. When you find your friends turn against you, you'd better ______.

A. find a suitable place to explode your anger and then think carefully

B. quarrel with them at once

C. write a letter saying you don't want to be their friend again

D. find new friends, too

4. The author seems to believe that ______.

A. new friends can't replace old friends

B. a secret between two friends should be told to a third person

C. thinking more in your friend's position can solve some problems

D. ignore those friends who turn against you

单项选择题