实战式重心位置是（） A.两脚中间 B.两脚偏后 C.双脚偏前 D.前三后七

Students learn their lessons in class．In class teachers teach them．Students sit in the classroom listening to the teacher. This is a way of learning．Is this the only way for students to learn? Of course not．There is another way to learn．That is students can teach themselves．Every student can teach himself, and every student is teaching himself when he is learning something．For example，if you cannot remember something when you are doing your homework．what will you do? You can look at your book to find the answer．This is a way to teach yourself．And it is not a difficult way．We can do this at any place and at any time．

How to teach yourself？ The first thing you must do is reading．Read something you are interested in，not you have to read．The second is that you must ask yourself questions．The question is something you don’t understand，or you want to know more about．You can write down these questions．A clever student is usually good at asking questions．The third is to answer the question yourself by thinking hard，by reading the text or other books，and sometimes by asking other people．These are the ways of teaching yourself．And you must do these all by yourself．If you keep doing like these for a long time，you are sure to succeed in your study．

小题1:Listening to the teachers is ______for students to learn

A．not a way

B．the best way

C．the only way

D．not the only way小题2:If you want to succeed，you’d better learn_________．

A．your lessons in the classroom

B．how to teach yourself

C．to read and write carefully

D．how to ask questions小题3:In teaching yourself, the first thing you must do is________．

A．writing

B．reading

C．asking

D．answering小题4:A clever student is usually good at______．

A．asking questions

B．answering question

C．finding answers

D．asking others小题5:Which of the following ideas do you think is right?

A．A student can teach himself but he doesn’t like to

B．It is a difficult way to learn to teach from the teacher

C．A student can learn to teach himself if he wants to be successful.

D．Students know very well how to teach themselves

解方程（x+1）²=4（x-2）²较为简捷的方法是（　　）

A．开平方法或因式分解法

B．开平方法或配方法

C．公式法或因式分解法

D．公式法

每个人都希望成为一个与众不同的人，真正的个性在于

A．穿奇装异服

B．从内心深处散发的魅力

C．课堂上起哄

D．好表现自己。

患者，男，56岁，上颌牙列缺失，下颌剩余右侧54，和左侧234。其中右侧4松动Ⅱ度，近中倾斜并向对颌伸长，牙槽骨吸收至根中1／3；右侧5松动Ⅰ度；左侧2、3为残根。叩（-），X线片示剩余根长10～15mm，未行RCT，根尖区无阴影；左侧4松动Ⅱ度，近中倾斜，向对颌伸长，牙槽骨吸收至根中1／3。

如下颌采用覆盖义齿修复，义齿戴人后，在非功能状态时义齿基托与黏膜贴合，义齿行使功能时出现翘动，可能的原因是（）

A.模型制取不准确

B.技工制作过程中基托变形

C.患者牙槽嵴发生变化

D.患者使用不当

E.覆盖基牙在非功能状态时与义齿基托接触太紧

关于房屋租赁合同的法律特征，下列说法错误的是（ ）。

A．房屋租赁合同是双务合同

B．房屋租赁合同是有偿合同

C．房屋租赁合同是继续性合同

D．房屋租赁合同是不要式合同