眼球钝挫伤易造成哪部分破裂（）. A.直肌附着点处巩膜 B.巩膜赤道部 C.角巩膜缘

The teacher stood before his class of 30 students and was going to hand out the final exam papers. “I know how hard you have all worked to get ready for this test. ” he said. “And because I know you are all able to understand these questions. I am ready to offer a B to anyone who would prefer not to take the test. ’’

A number of students jumped up to thank the teacher and left the classroom. The teacher looked at the rest students and said. “Does anyone else want to get a B? This is your last chance. ”Two more students decided to go. Seven students stayed. The teacher then handed out the papers. There were only three sentences on the paper： Congratulations! You have received an A in this class. Keep believing in yourself.

I never had a teacher who gave a test like that. but I think that it is a test that any teacher could and should give. Students who do not have confidence in what they have learned are B students at most.

The same is true for students in real life. The A students are those who believe in what they are doing because they have learned from both successes and failures. They have learned life’s lessons. whether from school education or from events in their lives，and have become better people. Scientists say that by the age of eight，80% of what we believe about ourselves has already been formed. You are a big kid now and you realize that you have some limits(局限). However，there is nothing you can’t do or leant to be. Sir Edmund Hillary, the first person to reach the top of Mount Qomolangma (珠穆朗玛峰)said，“We do not conquer the mountain, but ourselves. ”

小题1:Some students left the classroom because _________.

A．they were happy with the grade the teacher would give them

B．they were allowed to take another easier exam later on

C．they knew the teacher didn’t like them to take the test

D．they thought the exam was so easy that they don’t need to have a try小题2:The teacher gave the rest students an A because __________.

A．they answered all the questions in the exam correctly

B．they didn’t believe themselves

C．they believed themselves in what they had learned

D．they had been working hard for each exam小题3:The underlined word “conquer’’ means __________ in the passage.

A．发现

B．控制

C．探索

D．征服小题4:What does the writer want to tell us in the passage?

A．He wants us to know what our limits are.

B．He wants us to learn to believe in ourselves.

C．He wants us to receive school education.

D．He wants us to1earn from B students.

阅读下面的文字，完成下面问题。

　　你可以侧目异类，白眼异类，但绝不可小视异类。

　　异类可以成为事物的中心。晶莹美丽的珍珠，其中心不过是颗砂粒，正所谓“病蚌成珠”。

　　降雨全靠空气中的尘埃作为凝聚中心，倘若天空绝对干净，水汽再多也不会下雨，当然就没有植物和动物，更不可能有人类。同类之物彼此相差无几，谁也难成中心。异类的介入打破了无差异的均衡，“中心”应运而生，有序的体系得以形成。梁山好汉一百多，各怀绝技，谁肯服谁？倒是文武皆不出众的“异类”宋公明，凭着“呼保义”“及时雨”的名声坐了第一把交椅。

　　当液体加热到沸点之上，有时高出十几度还不沸腾，就成了过热状态。一旦过热液体受到扰动，瞬时大量汽化，极易发生爆炸。工业生产中为了避免出现“过热”，常将几粒多孔质的沸石投入高温液体。沸石不断释放的小气泡容纳了液体的饱和蒸气，鼓成大气泡腾出，借此平稳沸腾。过于纯粹的体系在形态转化时很可能出现滞后或过头，导致险象环生，异类的适时参与则可化险为夷。

　　事物需要发展，体系必然转变，异类可以成为伟大转折的突破口。20世纪初，正是爱因斯坦在假设光速不变的基础上提出相对论，普朗克又提出量子论，才使物理学获得了大发展。正因为他们的异类观念，才使得物理学大大创新。不过，切勿强求“异类”，最应警惕那种哗众取宠的故作怪异，如父亲逼着体弱女童跑全国、当街裸体自我标榜是行为艺术之类，就是渴求社会认可的假异类、真恶俗。

　　不能容忍异类的现象，时时可见。打工者来自不同的地区，农村人与城里人衣饰的差异、口音的不同……都可以泾渭分明地用来划分同类与异类，更不要说大的方面了。不要把一切原因都归结为漫长的封建帝制，更深刻的原因在于我们的“国民性”。蜂拥而上的党同伐异和肆无忌惮的语言暴力，正说明我们缺少起码的宽容心态。一个高度发达、受人尊敬的大国，首先要有宽宏大量的国民气度，最起码要能容忍那些并不妨碍别人、又不违犯法律的异类行为。

　　对于一个健全发展的体系，异类的存在不仅正常而且必需。

1．下列对文意的理解，不正确的一项是（     ）

A．作者以病蚌成珠的事例说明，砂粒在特定条件下成为事物的中心，可以创造美丽的结果。

B．作者以天空中水汽凝成雨滴的事实说明，灰尘是人类日常生活中不可缺少的积极因素。

C．作者以过热现象中沸石的作用说明，在工业生产中有时需要异类的参与来化解体系突变的危险。

D．作者列举父亲逼迫体弱女童跑全国、当街裸体自我标榜是行为艺术的事例，意在批评恶俗的假异类现象。

2．作者指出人们往往对异类持什么态度？作者认为应该持什么态度？

　____________________________________________________________

3．作者在文章结尾说“异类的存在不仅正常而且必需”，为什么？

　____________________________________________________________

45岁男性患者，右侧后牙冷热敏感酸软，影响生活质量，要求治疗，口内检查见左上67缺失，右侧上下67磨耗严重，探诊及冷热诊敏感。

以下哪些治疗方法可行（）

A.嵌体

B.高嵌体

C.窝沟封闭

D.桩冠

E.脱敏治疗

两药配合，辅药能使主药疗效增强的配伍是（）

A.相须

B.相使

C.相畏

D.相杀

炎症淋巴道扩散（）。

A.病原体侵入淋巴管，达到局部淋巴结

B.病原体被消灭、渗出物和坏死组织被吸收

C.病原体经组织间隙或自然管道向周围组织扩散

D.病原体大量繁殖、渗出物和坏死组织扩大

E.病原体侵入血流