The main purpose of an electric space heater installed in a large AC generator is to （）

A . Schedules the install AIX APARs and updates B . Automatically installs AIX APARs and updates via the HMc C . Schedules and automates the download of AIX APARS and updates D . Automatically queries existing machines and alerts when APARS and updates are available

A . testing for the mechanical load and the thermal load B . inspecting thermal and mechanical condition of the engine C . inspecting each system and exhaust temperature D . testing for compress pressure and explosion pressure

A . To act as ballast for light vessels B . To provide ventilation and drainage for cargo C . To secure the tarpaulins in place D . To support weakened bulkhead

A . seal the space between the piston and the liner B . reduce the amount of lube oil burned in the combustion chamber C . transmit heat from the piston to the cylinder liner D . damp out fluctuations of the piston side thrust

A . none，since it is implicit B . to enable Cisco IOS IPS to work properly；however，it is the deny all traffic entry that is actually required C . to enable Cisco IOS Firewall to work properly；however，it is the deny all traffic entry that is actually required D . to allow the log option to be used to log any matches E . to prevent sync flood attacks F . to prevent half-opened TCP connectio

A . help preheat the air for the furnaces B . help preheat the feedwater C . protect economizer from excessive heat D . prevent excessive furnace heat losse

A . control fuel injection time more precisely B . control fuel injection rate more precisely C . meet the environmental requirements D . meet high engine speed requirement

A . Schedules the install AIX APARs and updates B . Automatically installs AIX APARs and updates via the HMC C . Schedules and automates the download of AIX APARS and updates D . Automatically queries existing machines and alerts when APARS and updates are available

A . to inspect if the cylinder has the water leakage B . to expel out the residual water/gas/oil from the cylinder C . to check if fuel supply is normal D . A and B

A．To attempt to sell a second-hand vehicle B．To place an order for a vehicle part C．To describe the kind of car she is looking for D．To request a mechanical service

A．To inform. people the severity of the millennium bug. B．To accuse some comes for being inactive. C．To advise people to abandon the computers. D．To tell the readers the way to solve the millennium bug problem.

A. to describe how American children spend their summer. B. to explain the needs of the modern working families. C. to discuss the problems of the current school calendar. D. to persuade parents to stay at home to look after their kids.

A．explain why couples grow alike B．tell how couples like each other C．discuss the function of marriage D．describe the life of happily-married couples

A．To point out similarities in Emerson"s essays and poems B．To prepare the students to read an essay by Emerson C．To compare Emerson"s concept of universal truth to that of other authors D．To show the influence of early United States society on Emerson"s writing 此题为多项选择题。

A．To explain a new recycling policy B．To warn about inappropriate waste disposal C．To inform. about a schedule revision D．To promote a new garbage collection service

A．the contributions of household incomes to happiness B．the complex relationship between money and happiness C．the positive relationship between money and happiness D．the negative relations of money to happiness 此题为多项选择题。

A．Reminding the company employees of how to send and receive mails B．Criticizing the company employees for some bad habits C．Informing the company employees of an important announcement from the post office D．Giving thanks to all the company employees

A．To make a customer service complaint B．To congratulate on winning an award C．To request a special service D．To express gratitude to a company

A．To outline contrasting types of economic system. B．To explain the science of economic systems. C．To argue for the superiority of one economic system. D．To compare barter and money-exchange markets.

A．Monetary policy operation B．liquidity maintenance C．Acquisition of benefits D．Raising ong-term available funds