网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
单选题
At ground level, nitrous oxides are bad enough, but when up high, atmospherically they bond with free ions to create dangerous smog particles.
A

but when up high, atmospherically they

B

however, it is in the upper atmosphere in which it may

C

but in the upper atmosphere, they

D

however, but once in the upper atmosphere it is known to

E

as in the upper atmosphere they


参考答案

参考解析
解析:
主语为“nitrous oxides”为复数,故B、D错误。C项的表达比A项流畅,故本题选C项。
更多 “单选题At ground level, nitrous oxides are bad enough, but when up high, atmospherically they bond with free ions to create dangerous smog particles.A but when up high, atmospherically theyB however, it is in the upper atmosphere in which it mayC but in the upper atmosphere, theyD however, but once in the upper atmosphere it is known toE as in the upper atmosphere they” 相关考题
考题 The correct procedure for giving an auxiliary boiler a bottom blow, is to begin .A.when the boiler has been secured long enough for most solids to settleB.when the boiler has been cooled to ambient temperatureC.only after raising the water level to within 0.5 inch of the high water cutout onlyD.after bypassing the low pressure

考题 In order to help the new employees to maintain a high level of motivation and build up confidence ,a well-planed program is necessary.()

考题 In which circumstance are multiple copies of the same unicast frame. likely to be transmitted in the Ezonexam Switched LAN?A. During high traffic periodsB. In an improperly implemented redundant topologyC. After broken links are re-establishedD. When upper-layer protocols require high reliabilityE. When a dual ring topology is in useF. None of the above

考题 When you are making a high potential test on a piece of repaired electrical machinery, a rise in leakage current indicates _______.A.good insulationB.bad insulationC.high insulation power factorD.a high slot discharge factor

考题 In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?() A. after broken links are re-establishedB. in an improperly implemented redundant topologyC. when upper-layer protocols require high reliabilityD. during high traffic periodsE. when a dual ring topology is in use

考题 Which statement about inert gas pressures in a cargo tank is TRUE ________.A.The pressures of the inert gas in the tank may create excessive pressure at the pump while dischargingB.Gas pressures should be maintained at the highest permissible level throughout the discharging processC.High gas pressures may cause pyrophoric oxidation in the tankD.High gas pressures may cause loss of suction when stripping

考题 When designing speaking tasks, we must follow the principles except__________. A.maximum foreign talk B.even participation C.high motivation D.high language level

考题 In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?()A、after broken links are re-establishedB、in an improperly implemented redundant topologyC、when upper-layer protocols require high reliabilityD、during high traffic periodsE、when a dual ring topology is in use

考题 Which of the following high level menus are available when a user with the Seller role is using WebSphere Commerce Accelerator to manage a B2B store?()A、ApprovalsB、LogisticsC、MerchandiseD、OperationsE、ProductsF、Sales

考题 Scalability is provided in the server farm module by which of the following design strategies?()A、 up to 10 Gbps of bandwidth at the access levelB、 redundant servers at the access levelC、 modular block design at the access levelD、 high port densities at the access level

考题 Scalability is provided in the server farm module by which of the following design strategies?()A、up to 10Gbps of bandwidth at the access levelB、redundant servers at the access levelC、modular block design at the access levelD、high port densities at the access level

考题 In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switchedLAN?()A、after broken links are re-establishedB、in an improperly implemented redundant topologyC、when upper-layer protocols require high reliabilityD、during high traffic periodsE、when a dual ring topology is in use

考题 Which of the following is the MOST important concern when deciding on the servers locations?()A、Form factorB、Inadequate air flowC、Too high from ground levelD、Difficulty of physical access

考题 If the organizational spending plan has allocated $100,000 for a project, and the high level budget estimate for that project is $200,000; which of the following is accurate?()A、The high level budget estimates are inaccurateB、The organizational spending plan is inaccurateC、The budget is not aligned with the spending plan of the organizationD、The detailed bottom up budget will need to be adjusted

考题 You have created a locally managed tablespace by issuing the following command:        CREATE TABLESPACE data1   DATAFILE ’data1_file1.dbf’ SIZE 10M AUTOEXTEND ON MAXSIZE        UNLIMITED;   For the DATA1 tablespace, you have set the warning level alert limit to 70 percent.  In which situation will a warning level alert be generated?()  A、 when 700 KB is usedB、 when 700 KB is left as free spaceC、 when 7MB is usedD、 when 7MB is left as free spaceE、 no alert will be generated because an autoextensible datafile is included in the tablespace

考题 When setting up the Flashback Data Archive, which of these key parameters are required?()A、 Tablespace nameB、 Storage quotaC、 RetentionD、 Table nameE、 Create a default archive

考题 Which two requirements would lead towards a high availability solution?()A、When uptime is criticalB、When data must be refactoredC、When application concurrency is staticD、When data loss is unacceptableE、When application is a single point of failure

考题 单选题A tropical cyclone has recurved and entered temperate latitudes. In the Northern Hemisphere when a large high pressure system lies north of the storm,what situation may occur?()A The low may suddenly deepen,and the cyclone intensify and pick up speedB The left semicircle may become the dangerous semicircleC The low and the high may merge and cancel out the weather characteristics of eachD The high may force the cyclone to reverse its track

考题 单选题If the organizational spending plan has allocated $100,000 for a project, and the high level budget estimate for that project is $200,000; which of the following is accurate?()A The high level budget estimates are inaccurateB The organizational spending plan is inaccurateC The budget is not aligned with the spending plan of the organizationD The detailed bottom up budget will need to be adjusted

考题 单选题Which of the following is the MOST important concern when deciding on the servers locations?()A Form factorB Inadequate air flowC Too high from ground levelD Difficulty of physical access

考题 单选题Scalability is provided in the server farm module by which of the following design strategies?()A  up to 10 Gbps of bandwidth at the access levelB  redundant servers at the access levelC  modular block design at the access levelD  high port densities at the access level

考题 单选题When using a high-velocity fog stream in a passageway,the possibility of a blow back must be guarded against. Blow back is most likely to occur when().A pressure builds up in the nozzle which causes a surge of waterB the only opening in a passageway is the one from which the nozzle is being advancedC pressure in the fire hose drops below 100 psiD a bulkhead collapses due to heat and pressure

考题 单选题The scavenging air ports are located at () that they are just exposed by the upper edge of the piston when the piston is in the bottom dead center position.A so a heightB such a heightC so highD such high

考题 单选题A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases?().A In the lower level of the pumproomB In the middle level of the pumproomC In the upper level of the pumproomD On the deck outside the pumproom

考题 单选题You have created a locally managed tablespace by issuing the following command:        CREATE TABLESPACE data1   DATAFILE ’data1_file1.dbf’ SIZE 10M AUTOEXTEND ON MAXSIZE        UNLIMITED;   For the DATA1 tablespace, you have set the warning level alert limit to 70 percent.  In which situation will a warning level alert be generated?()A  when 700 KB is usedB  when 700 KB is left as free spaceC  when 7MB is usedD  when 7MB is left as free spaceE  no alert will be generated because an autoextensible datafile is included in the tablespace

考题 多选题Which of the following high level menus are available when a user with the Seller role is using WebSphere Commerce Accelerator to manage a B2B store?()AApprovalsBLogisticsCMerchandiseDOperationsEProductsFSales

考题 单选题Ammonia when used as a refrigerant is valuable because of its high efficiency, it is however ().A toxicB flammableC explosiveD all of the above