患牙调方法的注意事项如下，（）除外。 A.正中和非正中均有创伤_爱下问搜题

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问题单项选择题 A1型题

患牙调方法的注意事项如下，（）除外。

A.正中和非正中均有创伤，应先调正中

B.保持牙齿的生理外形和牙尖切割功能

C.保持正中时正常的颌间垂直距离

D.调磨时应注意不断滴水冷却

E.一次应多调磨几个牙

答案

参考答案：E

解析：

①调应在有水冷却的条件下进行，砂石轮的转速不宜过高，应间断磨改，避免产热刺激牙髓；②一般应先磨改正中位的早接触点，且对功能性牙尖的磨改一定要慎重；③一次不应磨牙太多，应边磨改边检查，以防止出现新的早接触点或不平衡；④磨改后观察数天进行复查，检查上次磨改效果，在此基础上决定是否需要再磨。故选E。

完形填空

Making friends is a skill. Like most skills, it         patience（耐心）. If you want to meet people and make friends, you must be willing to take some action. You must first go where there are people. You won't make friends staying home        .
Joining a club or group, talking to those who like the same things        you do is much easier. Or join someone       some activities.
Many people are shy when talking to new people.             meeting strangers means seeing the unknown. And it's human nature to feel a bit         about the unknown. Most of fears（恐惧）about             new people come from doubts（怀疑）. We imagine other people are        us-finding us too tall or too short, too this or too that. But don't forget that they must be feeling the same way. Try to accept（接受）yourself      you are, and try to put the other at ease（自由自在，自然）. You'll both feel more comfortable.
Try to act self-confident（自信）even if you don't feel that way when you     a room full of strangers. Walk straight, look at other people directly and       .
If you see someone you'd like to    , say something. Don't wait for        person to start a talk.
Just meeting someone        does not mean that you'll make friends with that person. Friendship is based on mutual（相互的）likings and "give and take". It takes time to       friendship.

单项选择题

个人教育贷款签约的操作风险不包括( )。

A．合同凭证预签无效
B．合同制作不合格
C．未对合同签署人及签字进行核实
D．未按规定保管借款合同