更多"[单选题]With prices（ ）so much,it’s har"的相关试题:
[单选题]Text 2 With so much focus on children’s use of screens,it's easy for parents to forget about their own screen use.“Tech is designed to really suck on you in,”says Jenny Radesky in her study of digital play,"and digital products are there to promote maximal engagement.It makes it hard to disengage,and leads to a lot of bleed-over into the family routine.”Radesky has studied the use of mobile phones and tablets at mealtimes by giving mother-child pairs a food-testing exercise.She found that mothers who sued devices during the exercise started 20 percent fewer verbal and 39 percent fewer nonverbal interactions with their children.During a separate observation,she saw that phones became a source of tension in the family.Parents would be looking at their emails while the children would be making excited bids for their attention.Infants are wired to look at parents’faces to try to understand their world,and if those faces are blank and unresponsive—as they often are when absorbed in a device－it can be extremely disconcerting foe the children.Radesky cites the“still face experiment”devised by developmental psychologist Ed Tronick in the 1970s.In it,a mother is asked to interact with her child in a normal way before putting on a blank expression and not giving them any visual social feedback;The child becomes increasingly distressed as she tries to capture her mother’s attention."Parents don't have to be exquisitely parents at all times,but there needs to be a balance and parents need to be responsive and sensitive to a child’s verbal or nonverbal expressions of an emotional need,"says Radesky.On the other hand,Tronick himself is concerned that the worries about kids'use of screens are born out of an“oppressive ideology that demands that parents should always be interacting”with their children:“It’s based on a somewhat fantasized,very white,very upper-middle-class ideology that says if you’re failing to expose your child to 30,000 words you are neglecting them.”Tronick believes that just because a child isn’t learning from the screen doesn’t mean there’s no value to it－particularly if it gives parents time to have a shower,do housework or simply have a break from their child.Parents,he says,can get a lot out of using their devices to speak to a friend or get some work out of the way.This can make them feel happier,which lets then be more available to their child the rest of the time.
The oppressive ideology mentioned by Tronick requires parents to_____
A.protect kids from exposure to wild fantasies
B.teach their kids at least 30,000 words a year
C.ensure constant interaction with their children
D.remain concerned about kid's use of screens
[单选题]Mercury’s（ ）is so much greater than the Earth’s that it completes more than four revolutions around the Sun in the time it takes the Earth to complete one.
A.velocity
B.orbit
C.weight
D.diameter
[单选题]The project workbook is not so much a separate document as it is a structure imposed on the documents that the project will be producing anyway.All the documents of the project need to be part of this （ ）. This includes objectives ,external specifications , interface specifications , technical standards , internal specifications and administrative memoranda(备忘录).Technical prose is almost immortal. If one examines the genealogy ( Ff ) of a customer manual for a piece of hardware or software , one can trace not only the ideas , but also many of the very sentences and paragraphs back to the first （ ） proposing the product or explaining the first design. For the technical writer, the paste-pot is as mighty as the pen.Since this is so, and since tomorrow's product-quality manuals will grow from today’s memos, it is very important to get the structure of the documentation right. The early design of the project （ ） ensures that the documentation structure itself is crafted, not haphazard. Moreover, the establishment of a structure molds later writing into segments that fit into that structure.The second reason for the project workbook is control of the distribution of （请作答此空）. The problem is not to restrict information, but to ensure that relevant information gets to all the people who need it.The first step is to number all memoranda, so that ordered lists of titles are available and h worker can see if he has what he wants. The organization of the workbook goes well beyond this to establish a tree-structure of memoranda. The （ ） allows distribution lists to be maintained by subtree, if that is desirable.
A.product
B.manual
C.document
D.information
[单选题]I don't think __ possible to finish so much work within so short a time.
A.this
B.that
C.its
D.it
[单选题]Stop making so much noise,for you are__________me in my studies.
A.attracting
B.disturbing
C.contracting
D.contacting
[单选题]She worked hard at her task before she felt sure that the results would（ ）her long effort.
A.justify
B.testify
C.rectify
D.verify
