单项选择题 根据下列文章,请回答 23～30 题。 A Personal Look at Klinefelter Syndrome1 I was diagnosed with Klinefelter syndrome(KS)(遗传性细精管发育不全)a little more than a year ago，at the age of 25 in February 1996．Being diagnosed has been a big sigh of relief after a life of frustrations．Throughout my early childhood and adolescence。I was very shy, reserved，and had trouble making friends．1 would fly into rages for no apparent reason．My parents knew when l was very young that there Was something about me that wasn’t right．2 I saw many psychologists，psychiatrists(精神科医生)，therapists，and doctors，and their only diagnosis was” learning disabilities．”In the seventh grade。I was told by a psychologist that l was stupid and lazy, and l would never amount to anything．After barely graduating from high school．I started out at a local community college．I received an associate degree in business administration。and never once sought special help．I transferred to a small liberal arts college to finish up my bachelor of science degree，and spent an extra year to complete a second degree．Then I started a job as a software engineer for an Internet—based company．I have been using computers for 17 years and have learned everything l needed to know on my own．3 To find out my KS diagnosis．I had gone to my general physician for a physical examination．He noticed that my testes(睾丸)were smaller than they should be and sent me for blood work．The karyotype(染色体组型)showed KS。47，XXY．After seeing the symptoms of KS and what effects they might have，I found it described me perfectly．But after getting over the initial shock and dealing with the denial，depression，and anger，I decided that there could be things much worse in life．I decided to take a positive approach．4 There are several types of treatments for KS．I give myself a testosterone(睾丸素)injection once every two weeks．My learning and thought processes have become stronger。and I take greater pleasure in meeting other people and have become more of a Leader．Granted。not all of this is due to the increased testosterone Level，some of it Is from a new confidence level and from maturing．5 I feel that parents who are finding out prior to the birth of their son that he will have KS are very lucky．There is SO much they can do to help their child have a great life．I have had almost all of the symptoms at some time in my life，and I've gotten through and done well． 第 23 题 Paragraphs 2___________A．Helping Your Unlucky Kid to Succeed in LifeB．Struggling for a Normal Life amid FrustrationsC．Giving up Hope after the KS DiagnosisD．Starting a New Life after the KS DiagnosisE．Keeping Your Unlucky Kid from Knowing the TruthF．Adopting a Positive Attitude toward the KS Diagnosis

单项选择题 下列哪项不是肝硬化患者腹水的生成原因（）

单项选择题 根据下列文章,请回答 23～30 题。 Exercising Your Memory 1 Aging does not mean a dramatic decline in memory power, unless you help it happen by letting your mind go．2 That’s not to say that memory doesn’t change throughout life．Researchers divide memory into categories based on the Length of time when memories are stored．One system divides it up as short—term(1ess than one minute；Remembering a telephone number while you dial，for instance)，long-term(over a period of years)and very long-term memory(over a lifetime)．3 Short．term memory isn’t mastered until about age 7．but after that you never lose it．Long-term memory, however，involves more effort and skill and changes more through life．It's not until the early teens(十几岁)that most people develop a mature long—term memory．4 First，we must get information into our heads through learning．Learning strategies can get rusty(生锈的)without constant use．High school and college students，who are forced to repeatedly exercise their long-term memory abilities(at least long—term enough to get them through a final exam)，usually do well on memory tests．The longer you stay in school。the more chance you get to polish your learning skills．It's no wonder that more highly educated people have more effective memory skills throughout life．5 Although older people in general learn somewhat more slowly than they did when younger, a dramatic difference exists between those who stay intellectually active reading，discussing，taking classes，thinking——and those who do not．Giving the brain a daily workout(锻炼)is just as important as exercising your muscles．Brainwork keeps your learning strategies in shape，and this helps your memory to function at full capacity．6 The next part of a healthy long—term memory is retention(记忆力)，the ability to store what you have learned．Memory researchers still do not know whether memories are lost——whether they still exist in the brain but our mental searching cannot turn them up，or have disappeared entirely as our brain ages．7 The third necessity for memory is recall。the ability to bring to mind the memories we have stored．Again。while aging has widely different effects on the recall abilities of different people。research indicates that the older we get，the longer it takes to recall facts．But slower recall is still recall．In fact．aging does not seem to have any effect on forgetting at all．which takes place at the same rate in younger and older people． 第 23 题 Paragraph 3__________