The political system of the US is based on the following except （）

A:federalism B:the constitutional monarchy C:the separation of powers D:respect for the constitution E:the rule of law

A sound inventory strategy is based on a combination of five aspects of selective deployment: they are core customer segmentation，and( ).

A:product profitability B:transportation integration C:time—based performance D:competitive performance

Theory is based on practice and( )turn serves practice.

A:in B:by C:at D:on

Fuel injection valves should be taken out, cleaned, and lifting checked every _____.

A:two to four months B:four to six months C:six to eight months D:year

In cargo crane, _____ for lifting the load.

A:a hoisting motor B:a luffing motor C:a mooring motor D:a slewing motor

The lifting pressure of ____ is set in the presence of a Surveyor it is locked and cannot be changed.

A:fuel valves of main engine B:injector pump of main engine C:safety valves of marine boiler D:safety valves of a reciprocating pump

For any given pedestal crane ，when the boom is lengthened ，the lifting capacity is _____．

A:unchanged B:increased C:eliminated D:decreased"

Passage Two Some people believe that you have to be a special kind of person to sell a product.But although it is clear that a successful sales rep does need special talents and an outgoing personality ， many of the skills he uses are used by us all ： we build and maintain relationships with different kinds of people， we listen to and take note of what they tell us and don ’ t just enjoy the sound of our own voices， and we explain things to them or discuss ideas with them. A firm may depend on their own sales and/or on the salesmanship of their distributors ， wholesalers or retailers.But any company needs to establish a personal relationship with its major clients （‘ key accounts） and potential customers ’ （‘ prospects）.It is often said that ’ ‘ people do business with people ： a firm doesn ’ ’ t just deal impersonally with another person ， but a person in the buying department receives personal visits from people representing the firm ’ s suppliers on a regular basis – or in case of department stores or chain stores ， a team of buyers may travel around visiting suppliers. Keeping sales people ‘ on the road ’ is much more expensive than employing them to work in the office and much of their time is spent unproductively traveling.Telephone selling may use this time more productively （though in some countries this is illegal ）， but a face-to-face meeting and discussion is much more effective.Companies involved in the export trade often have a separate export sales force ， whose travel and accommodation expenses may be very high.Servicing overseas customers may consequently often be done by phone ， telex or letter and personal visits may be important.Many firms appoint an overseas agent or distributor whose own sales force takes over responsibility for selling their products in another country. A sales department consists of many people who are based in different parts of the country or the world ， who don ’ t have the day-to-day contact and opportunities for communicating with each other that office-based staff have.For this reason， firms hold regular sales conferences where their entire sales force can meet ， receive information and ask questions about new products and receive training.

With which of the following statements would the author most likely agree ？

A:Office-based sales force is better than country-based one. B:Country-based sales force is better than office-based one. C:Country-based sales force can use phone and telex more efficiently. D:Office-based sales force can have day-to-day contact.

【The Internet ofthings（IoT）is the inter-networking ofphysical devices ， vehicles ，buildings ，and other items embeddedwith electronics ， software ，sensors ，actuators ，and network connectivity which enable these objects to collect and exchange data. In 2013 the Global Standards Initiative on Internet ofThings（IoT- GSI）defined the 10T as"a global infrastructure for the information society ，enabling advanced services by interconnecting（physical and virtual）things based on existing and evolving interoperable information and communication technologies"and for these purposes a"thing"is"an object ofthe physical world（physical things）or the information world（virtual things）.which is capable ofbeing identified and integrated into communication networks".The 10T allows objects to be sensed or controlled remotely across existing network infrastructure ，creating opportunities for more direct integration of the physical world into computer-based systems，and resulting in improved efficiency.Accuracy and economic benefit in addition to reduced humanintervention. WhenIoT is augmented with sensors and actuators ，the technology becomes an instance of the more general class of cyber-physical systems，which also encompasses technologies such as smart grids ，virtual power plants ，smart homes，intelligent transportation and smart cities.Each thing is uniquely identifiable through its embeddedcomputing system but is able to interoperate within the existing Intemet infrastructure.Experts estimate that the 10T wi l1 consist of about 30 bi l1ion objects by 2020.】

Based on the paragraph above，we know that the applications ofthe 10T include(　).

A:environmental monitoring B:intelligent transportation C:energy management D:all ofthe above