51题库考试学习网
最新考题
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在芝加哥交易所按2005年10月的期货价格购买一份美国中长期国债期货合约,如果期货价格上升2个基点,到期日你将()。A、损失2000美元B、损失20美元C、盈利20美元D、盈利2000美元
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我国一家出口企业半年后将收到一笔美元外汇,该企业现在打算通过远期外汇市场按照固定的汇率把美元卖出,这属于金融工程里的()思想。A、消除风险B、分散风险C、减少风险D、转移风险
01-05
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除哪项外,均属簧圈类栓塞物质()A、可动性导丝B、直丝微粒与线段C、不锈钢圈D、NT海/球栓E、微型铂金丝圈
01-05
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男性,40岁,脾脏肿大,回声轻度减低,实质内探及多个圆形低回声及无回声结节,边界清楚。可提示诊断为()A、脾恶性淋巴瘤B、脾结核C、脾梗死D、脾血管瘤E、脾转移癌
01-05
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扁平足,常用的摄影体位是()A、足侧位B、足轴位C、足斜位D、足负重水平侧位E、双曝光全足正位
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血液中的声速大约是()A、330m/sB、1000m/sC、1570m/sD、5000m/sE、8000m/s
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超声引导下囊肿无水乙醇治疗错误的是()A、囊液应尽可能抽净B、穿刺针尖置于囊肿的底部C、无水乙醇浓度应90%,停留时间应大于5min,尽量作用于内壁D、每次注入无水乙醇的量为囊液量的1/2或1/3,但总量不超过60mlE、注入无水乙醇时,要避免气体进入囊腔
01-05
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超声引起细胞和组织发生变化的机制是()A、振动和辐射B、吸收和反射C、直接和间接D、热和空化效应E、以上均不是
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对快速射血期心血管功能变化的叙述,下列哪一项有错误()A、心室压超过动脉舒张末压B、半月瓣开放C、血液快速从心室排入大血管D、快速射血期血量占心室30%左右E、心室压力迅速明显下降
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人眼能分辨的最低密度差异为()A、2%B、5%C、10%D、15%E、30%
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细支气管的直径为()A、2mmB、1.5mmC、0.25mmD、0.5mmE、1mm
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用造影剂扩张开的胃壁,CT片上正常厚度为2~5mm,不超过()mmA、10B、15C、20D、25E、30
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患儿10岁,右股骨部疼痛3个月伴发热,血WBC总数增高,血沉快,穿刺无脓,X线片为右股骨中段呈洋葱皮样骨膜反应,ECT为血流相动脉血流灌注增强、血池相呈血管增生血供增加,有不规则超越骨皮质的强浓聚区,延迟相病灶呈"热区",其诊断可能是()A、骨髓炎B、尤文肉瘤C、骨结核D、骨巨细胞瘤E、以上都不是
01-05
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葡萄胎时易出现的囊肿是()A、黄体囊肿B、黄素囊肿C、卵巢囊肿D、输卵管伞囊肿
01-05
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多选题A company has a business application that provides its users with many different reports: receivables reports, payables reports, revenue projects, and so on. The company has just purchased some new, state-of-the-art, wireless printers, and a programmer has been assigned the task of enhancing all of the reports to use not only the company's old printers, but the new wireless printers as well. When the programmer starts looking into the application, the programmer discovers that because of the design of the application, it is necessary to make changes to each report to support the new printers. Which two design concepts most likely explain this situation?()AInheritanceBLow cohesionCTight couplingDHigh cohesionELoose couplingFObject immutability
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单选题Jessica moved to Florida to work for another company.ARight.BWrong.CDoesn’t say.
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单选题Click the Exhibit button. Which statement is true about the classes and interfaces in the exhibit?()A Compilation will succeed for all classes and interfaces.B Compilation of class C will fail because of an error in line 2.C Compilation of class C will fail because of an error in line 6.D Compilation of class AImpl will fail because of an error in line 2.
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单选题Given: What is the result?()A 2B 3C 12D 23E 123F Compilation fails.G An exception is thrown at runtime.
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单选题Which Man class properly represents the relationship "Man has a best friend who is a Dog"?()Aclass Man extends Dog { }Bclass Man implements Dog { }Cclass Man { private BestFriend dog; }Dclass Man { private Dog bestFriend; }Eclass Man { private DogbestFriend; }Fclass Man { private BestFrienddog; }
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单选题When did scientists fly there to watch?ABefore the volcano broke out.BAs soon as the volcano broke out.CAbout four days after the volcano broke out.
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填空题The Capital Airport is the largest one in China.→ The Capital Airport is ____ any other airport in China.
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填空题Tom saw his best friend at the party when it was 8 o’clock.→ Tom ____ see his best friend ____ it was 8 o’clock.
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单选题— How soon will you be able to finish your homework?— ______.AAfter two hoursBTwo hours laterCIn two hours
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单选题You’d better ______ your homework before dusk.AfinishBto finishCfinishing
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填空题Reading story-books is my hobby.→ I like reading story-books____.
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填空题Many Chinese friends went to the party.→____ many Chinese friends at the party.
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单选题Given: What is the result?()A testB nullC An exception is thrown at runtime.D Compilation fails because of an error in line 1.E Compilation fails because of an error in line 4.F Compilation fails because of an error in line 5.
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单选题Given: What is the result?()A CanadaB null CanadaC Canada nullD Canada CanadaE Compilation fails due to an error on line 26.F Compilation fails due to an error on line 29.
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多选题Given: Which two methods, inserted independently at line 17, correctly complete the Sales class?()Adouble getSalesAmount() { return 1230.45; }Bpublic double getSalesAmount() { return 1230.45; }Cprivate double getSalesAmount() { return 1230.45; }Dprotected double getSalesAmount() { return 1230.45; }
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单选题Click the Exhibit button. Given: ClassA a = new ClassA( ); a.methodA( ); What is the result? ()A Compilation fails.B ClassC is displayed.C The code runs with no output.D An exception is thrown at runtime.
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单选题Which is not a reason for children to show love for parents?AParents love and take care of children.BParents pass away before children grow up.CParents give education to children.
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多选题Given: Which three methods, inserted individually at line 14, will correctly complete class Two?()Aint foo() { /* more code here */ }Bvoid foo() { /* more code here */ }Cpublic void foo() { /* more code here */ }Dprivate void foo() { /* more code here */ }Eprotected void foo() { /* more code here */ }
01-05
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单选题Which of the three sentences is wrong?AFreud’s mother and the King Josef usually spent their summers in the same place.BFreud’s mother’s birthday and the King’s birthday were on the same day.CFreud’s mother knew that the band was playing for the King.
01-05
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单选题What do you know about “carnation”?AIt only has two kinds of colors.BIt refers to the clothes people wear on Mother’s Day.CIt’s a kind of flower showing love and best wishes.
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单选题It’s impossible for you to know a stranger’s age.ARight.BWrong.CDoesn’t Say.
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多选题Which two statements are true?()AIt is possible for more than two threads to deadlock at once.BThe JVM implementation guarantees that multiple threads cannot enter into a deadlocked state.CDeadlocked threads release once their sleep() method's sleep duration has expired.DDeadlocking can occur only when the wait(), notify(), and notifyAll() methods are used incorrectly.EIt is possible for a single-threaded application to deadlock if synchronized blocks are used incorrectly.FIf a piece of code is capable of deadlocking, you cannot eliminate the possibility of deadlocking by inserting invocations of Thread.yield().
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单选题Only your best friends will tell you that you look young.ARight.BWrong.CDoesn’t Say.
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多选题Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object?()AWhen using versions of Java technology earlier than 5.0.BWhen sharing a StringBuffer among multiple threads.CWhen using the java.io class StringBufferInputStream.DWhen you plan to reuse the StringBuffer to build more than one string.
01-05
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单选题If you want to have tea at a friend's home, ______.Ayou may ask if there is tea in his homeBit is important to wait for his invitationCit is not necessary to let him know before
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单选题How old are the people who run the restaurant?AOver 20.BFrom 16 to 21.CFrom 6 to 12.
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单选题Which do you think is ______ important, money or health?AmoreBmostCthe
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单选题Given: What is the result?()A Compilation fails.B An exception is thrown at runtime.C The code executes normally and prints "sleep".D The code executes normally, but nothing is printed.
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单选题Given: What is the result when the go( ) method is invoked?()A 00B 0001C 000120D 00012021E Compilation fails.F An exception is thrown at runtime.
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单选题Given: What is the result?()A Afoo AfooB Afoo BfooC Bfoo AfooD Bfoo BfooE Compilation fails.F An exception is thrown at runtime.
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单选题How many building places does the Building Service look at each month to see if things are going on well?A700.B900.CWe don’t know,
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多选题Given: Which two statements are true about the result if the default locale is Locale.US?()AThe value of b is 2.BThe value of a is 3.14.CThe value of b is 2.00.DThe value of a is 3.141.EThe value of a is 3.1415.FThe value of a is 3.1416.GThe value of b is 2.0000.
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单选题How old are the people who run the restaurant?AOver 20.BFrom 16 to 21.CFrom 6 to 12.
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单选题Jessica likes Chicago because it is one of the largest cities in the US.ARight.BWrong.CDoesn’t say.
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单选题Jessica’s office in the Florida Keys is close to the beach.ARight.BWrong.CDoesn’t say.
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单选题He’d like ______ with you. He wants some help.Ato talkBtellCto say
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单选题Mrs. Brown came to China ______ 1996.AonBofCin
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填空题I borrowed a book from Linda.→ Linda ____ a book.
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填空题I have never taken a plane. My friend Li Ping, either.→ ____ us has ever taken a plane.
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单选题“HELP US TO HELP YOU” means ______.Asometimes your help is not necessaryByou can make it easier for us to helpCusually we cannot help you
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单选题They could not find their way back because they couldn’t decide which of the two roads led to their tents.ARight.BWrong.CDoesn’t say.
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多选题Click the Exhibit button. Given: Which two statements are true if a NullPointerException is thrown on line 3 of class C? ()AThe application will crash.BThe code on line 29 will be executed.CThe code on line 5 of class A will execute.DThe code on line 5 of class B will execute.EThe exception will be propagated back to line 27.
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单选题Given: Which is true?()A If line 10 is removed, the compilation succeeds.B If line 11 is removed, the compilation succeeds.C If line 12 is removed, the compilation succeeds.D If line 13 is removed, the compilation succeeds.E More than one line must be removed for compilation to succeed.
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单选题Given: What is the result when the go( ) method is invoked?()A 00B 0001C 000120D 00012021E Compilation fails.F An exception is thrown at runtime.
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单选题A team of programmers is reviewing a proposed API for a new utility class. After some discussion,they realize that they can reduce the number of methods in the API without losing any functionality.If they implement the new design, which two OO principles will they be promoting?()ALooser couplingBTighter couplingCLower cohesionDHigher cohesionEWeaker encapsulationFStronger encapsulation
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单选题Given: What is the result?()A The code runs with no output.B An exception is thrown at runtime.C Compilation fails because of an error in line 20.D Compilation fails because of an error in line 21.E Compilation fails because of an error in line 23.F Compilation fails because of an error in line 25.
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单选题A team of programmers is involved in reviewing a proposed design for a new utility class. After some discussion, they realize that the current design allows other classes to access methods in the utility class that should be accessible only to methods within the utility class itself. What design issue has the team discovered?()ATight couplingBLow cohesionCHigh cohesionDLoose couplingEWeak encapsulationFStrong encapsulation
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单选题Click the Exhibit button. What is the output if the main( ) method is run?()A 4B 5C 8D 9E Compilation fails.F An exception is thrown at runtime.G It is impossible to determine for certain.
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多选题Given: Which two code fragments, inserted independently at line 13, will compile?()Asuper(name, baseSalary);Bthis.commission = commission;Csuper();this.commission = commission;Dthis.commission = commission;super();Esuper(name, baseSalary);this.commission = commission;Fthis.commission = commission;super(name, baseSalary);Gsuper(name, baseSalary, commission);
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单选题The labels inside the clothes tell you how to keep them looking their best.ARight.BWrong.CDoesn’t Say.
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单选题What happened to one of the four birds?AIt was dead on the way to London.BIt flew away from the cage.CIt was stolen by someone.
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单选题Whom did Mr. Black buy a present for?AHis boss.BThe son of his boss.CMr. Black’s wife.
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单选题The more time you spend on the Internet, the less time you are with your family and friends.ARight.BWrong.CDoesn’t say.
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单选题Given that t1 is a reference to a live thread, which is true?()AThe Thread.sleep() method can take t1 as an argument.BThe Object.notify() method can take t1 as an argument.CThe Thread.yield() method can take t1 as an argument.DThe Thread.setPriority() method can take t1 as an argument.EThe Object.notify() method arbitrarily chooses which thread to notify.
01-05
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单选题A programmer has an algorithm that requires a java.util.List that provides an efficient implementation of add(0, object), but does NOT need to support quick random access. What supports these requirements?()Ajava.util.QueueBjava.util.ArrayListCjava.util.LinearListDjava.util.LinkedList
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单选题Given: What is the result?()A 2B 24C 234D 246E 2346F Compilation fails.
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