Passage 10
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 for 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.
Radesky’s cites the“still face experiment”to show that（ ）.
根据第三段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 for the children.可知婴儿会通过父母的面容去理解这个世界，如果父母没有表情或没有回应，会对孩子产生不好的影响。所以R引用这句话是想表明父母需要对儿童的情感需求做出反应。故正确答案是选项D。
根据《中华人民共和国中国人民银行法》的规定，我国货币政策的最终目标是（ ），并以此促进经济增长。
箱子里面有红、白两种玻璃球，红球数比白球数的3倍多两个，每次从箱子里取出7个白球、15个红球。如果经过若干次以后，箱子里只剩下3个白球、53个红球，那么，箱子里原有红球比白球多多少个?
将自然数1~100分别写在完全相同的100张卡片上，然后打乱卡片，先后随机取出4张，问这4张先后取出的卡片上的数字呈增序的几率是多少？（）
对于债券利率的风险结构，描述正确的有（ ）。
市场经济体制下，财政具有的职能有( )。
（ ）决定着生产关系。
左边给定的是纸盒的外表面，下列哪一项能由它折叠而成？（ ）
货币制度最基本的内容是规定（ ）。
如果一国货币汇率上升，即对外升值，就可能会导致（ ）。
（）
