17．A．mostB．leastC．moreD．less
17．
A．most
B．least
C．more
D．less
相关考题：
题干材料：Due to the large amount of heat picked up by the air in boiler and engine rooms, it would be impracticable to maintain ambient conditions within the comfort zone by air conditioning or any other means. The normal practice is to provide copious mechanical ventilation; in boiler rooms, the quantity is equated to the combustion requirements, while in a motor ship engine room the supply may be 25-50% in excess of the requirements of the engines.The axial flow fan is particularly suited to handle these large air volumes at the moderate pressures required, while of course the “straight-through” flow feature places it at an advantage over the centrifugal fan.The increasing adoption of automation, with the provision of a separate control room makes less significant the fact that comfort conditions cannot be maintained in the engine room all the time.问题：Which of the following devices should be taken to maintain ambient conditions of the boiler and machinery space?A.air compressorB.air coolerC.air-conditioning plantD.mechanical ventilation plantIn a motor vessel, the air quantity which the engine room need is_______ of the requirements of the engines.A.less than 25-50%B.more than 125-150%C.more than 25-50%D.less than 125-150%According to this passage, which of the following statements is true?A.In boiler and machinery spaces, there is the air conditioningB.In the boiler rooms the requirement of air volume should meet 25-50% of combustion requirementC.To maintain the comfort zone in the separate control room the air conditioning plant should be fittedD.The comfort conditions can be maintained in the engine room all the timeAt the middle pressure and large air quantity,_________ is more suitable.A.an axial flow fanB.a radial flow blowerC.a centrifugal fanD.an auxiliary blower请帮忙给出每个问题的正确答案和分析，谢谢！
In a motor vessel, the air quantity which the engine room need is_______ of the requirements of the engines.A.less than 25-50%B.more than 125-150%C.more than 25-50%D.less than 125-150%
（71）is the science of hiding information。Whereas the goal of cryptography is to make data unreadable by a third party。the goal of steganography is to hide the data from a third party。In this article,I will discuss what steganography is,what purposes it serves,and will provide an example using available software。 There are a large number of steganographic（2）that most of us are familiar with(especially if you watch a lot of spy movies),ranging from invisible ink and microdots to secreting a hidden message in the second letter of each word of a large body of text and spread spectrum radio communication。With computers and networks,there are many other ways of hiding informations,such as: Covert channels(c,g,Loki and some distributed denial-of-service tools use the Internet Control（3）Protocol,or ICMP,as the communication channel between the“bad guy”and a compromicyed system) Hidden text within Web pages Hiding files in“plain sight”(c,g，what better place to“hide”a file than with an important sounding name in the c:\winnt system32 directory) Null ciphers(c,g,using the first letter of each word to form a hidden message in an otherwise innocuous text) steganography today,however,is significantly more（4）than the example about suggest,allowing a user to hide large amounts of information within image and audio。These forms of steganography often are used in conjunction with cryptography so the information is double protected;first it is encrypted and then hidden so that an advertisement first。find the information(an often difficult task in and of itself)and the decrypted it。 The simplest approach to hiding data within an image file is called（5）signature insertion。In this method ,we can take the binary representation of the hidden data and the bit of each byte within the covert image。If we are using 24-bit color the amount and will be minimum and indiscriminate to the human eye。（75）处的单词应是 A.least B.most C.much D.less
根据以下材料，回答题He works ten hours a day, makes more thanUS $ 98000 a year, doesn′t 16 to take holidays, dresses 17 he pleases. He′s 18 been happier and is looking foranother job. This 33-year-old white, university-educated person is the typical Internetworker, according to a study by the Industry Standard, a San Francisco-basednews magazine.There is also a reasonable chance that hisemployer will arrange his dry cleaning,19 him to 20 his dog to work, offer him fleemassages and give him stock options. And he still thinks people in other 21are doing 22.The typical worker, it appears, not onlyenjoys an income about 23 the national average but also enjoys himself.At present 2.5 million people 24 by Internet firms in the US, The 25 ofthe study give plenty of reasons 26 so many people think the grass isgreener in Silicon Valley.27 after tech-stoeks sharply 28 in April,29 many start-ups, there is still mood of enthusiasmand special advantage among those still employed. So what 30 52 percent of them "veryhappy" "Demandingwork" is given as the main reason and "salary" is 31 close 32 .Those questioned in the study also listedworking weekends and 33 holidays as signs of the pleasure of theworkplaces.Only 13 percent were paid for 34hours work while 14 percent put more than 12 hours work on an average day."It wasn′t all about 35." wrote Mary Ann Thompson in theintroduction to the study, "It was fun." A.extra B.other C.more D.spare
Those who are against the proposition suspect that it may lead to( ) A.a protest of teenage girls B.full stop of abortion C.more cases of child abuse D.serious social problems