已知一个等腰三角形的周长为16，则腰长y关于底边长x的函数关系式（写出x的取值范

女性，49岁。以"双手及颜面皮肤肿胀、变硬6个月"来诊。查体：手指及面部皮肤增厚，皮肤紧绷，嘴唇变薄，张口受限。手指肿胀，呈"腊肠样"，指端发绀，关节活动受限。实验室检查：血、尿常规正常，肝肾功能正常，ANA阳性。

患者近两周出现活动后气短及干咳，应为患者做肺CT检查，目的是除外（）

A.肺内感染

B.肺间质病变

C.合并肺部肿瘤

D.合并肺结核

E.合并支气管炎

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

How to Read a Book

Books can be your best friends.  1  They can introduce you the things you may never see… But do you know how to read them in order to get the fullest enjoyment possible? The following tips should help.

1. Find a book. Look in the library or in one of the large bookstores. You could also ask friends if you could have a book at their book shelves. Search the shelves until you find a book that looks good．Read the first page to see how it reads, and the cover text on the back of the book, if it has any.  2

2. Buy or borrow it and take it home. Do not start to read it until you have the time.  3  And set aside time to do nothing else but read, as it can be, at times, suspenseful（悬疑的）, exciting and relaxing.

3. Get comfortable on the couch. Have a lamp behind you, lighting the area where you are reading. Make sure the television is off and that anything else that could distract you has been attended to.  4 __.

4. Start the book by turning the pages and really enjoy it. Do not think about anything else but what you are reading. Put yourself into the action or location in the story. Once you concentrate completely, it will be difficult to put the book down. And remember that reading is not running your eyes over a book.  5 . However, if you need to read the book quickly, then you do not need to pay attention to every word.

A．If you are busy doing other things, you should wait until you have finished them．

B．Get warm if you are going to be sitting still for a few hours．

C．If you are already concentrating, then buy it or borrow it．

D．Try to imagine the story in your head．E. They can take you to places that you may never go．

F. You should read it actively and enjoy it completely．

G. Otherwise, you will miss it．

如果把存储器分为随机存取存储器、只读存储器、顺序存取存储器和直接存取存储器，这种分类方法是（ ）

A．按存储介质分类

B．按存取方式分类

C．按信息的可保护性分类

D．按位置和功能分类

下面哪项内容不是对行为治疗的描述（）

A.基于实验心理学的成果

B.帮助病人消除不良行为

C.关注病人对事物的理解

D.促进良好行为的产生

E.可操作性相对较强

患者男性，60岁，既往有胆石症病史。因关节痛服吲哚美辛3片，今晨起上腹不适，随即呕吐咖啡样物，伴鲜血共约500ml。查体：血压110／60mmHg，心率114次／分，神志清，全身皮肤及巩膜无黄染，未见肝掌、蜘蛛痣，腹软，全腹无压痛、反跳痛，肝脾肋下未及。

上消化道出血部位是指（）

A.食管、胃出血

B.食管、胃、十二指肠球部出血

C.空肠以上部位出血

D.屈氏韧带以上部位出血

E.回盲瓣以上部位出血