某建设项目需要安装一条自动化生产线,现有甲、乙、丙三个方案,有关资料如表所示。假定各

题型:单项选择题

问题:

某建设项目需要安装一条自动化生产线,现有甲、乙、丙三个方案,有关资料如表所示。假定各方案生产能力相同。当年产量在1万~1.33万件时,总成本由小到大依次的顺序为______。 方案 年固定成本/万元 单位产品成本/元 甲 5000 6000 乙 6000 5000 丙 7000 4500

A.甲→乙→丙
B.丙→乙→甲
C.乙→丙→甲
D.乙→甲→丙

考点:造价工程师工程造价管理基础理论与相关法规工程造价管理基础理论与相关法规
题型:单项选择题

“恩威并重”“刚柔并济”是清朝边疆少数民族政策的特点之一。以下史实最能体现清朝“威”与“刚”的是(    )

A.册封班禅和达赖

B.设驻藏大臣

C.平定大小和卓叛乱

D.安置土尔扈特部

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Most parents of kids under age 8 don't worry about how much time they spend watching TV or using other media, from computers to smart phones to tablets PCs, according to a new survey that found a child's use of media often reflects how much time parents spend in the similar way.

¨We generally found that media use is not a source of conflict in the home" for families with young children, Ellen Wartella, a researcher from Northwestem University, told USA Today. She led a survey of 2,326 parents who have children 8 and younger.It found that in 80 percent of families, children's media use was not a problem, with 55 percent “not too" or“ not at all"  concerned about it. It also showed parents have more positive than negative feelings about how media consumption affects a child's learning and the development of creativity.The exception is video games, which are viewed more negatively than TV, computers or mobile devices.“Parents rated video games as more likely to have a negative effect on children's school performance, attention time, creativity, social skills, behavior and sleep than any other medium," the researchers said in a news conference about the survey.

¨The findings exposes a generational shift (转移) in parental attitudes about technology's role in young children's lives," said Wartella.“Today's parents grew up with technology as a central pact of their lives, so they think about it differently than earlier generations of parents, instead of a battle with kids on one side and parents on the other, the use of media and technology has become a family affair. "

The researchers identified three media environments created by parents: media-centric (39 percent of families) , media-moderate (45%)and media-light (16%). Children  in media-centric families spend at least three hours more each day watching TV or using computers, video games and tablet PCs don't make parenting easier.And 88 percent of parents say they are most likely to turn to toys or activities to keep their children occupied.Slightly fewer turn to books (79%) and TV(78%).

The survey didn't look at how media affects children. That's a topic that the American Academy of Pediatrics has handled a number of times. The AAP says studies have found too much media use can lead to attention- problems, school difficulties, sleep and eating disorders and being fat. In addition, the Internet and cell phones can provide platforms for illegal and risky behaviors.¨By limiting screen time and offering educational media and non-electronic formats (格式)such as books, newspapers and board games, and watching television with their children, parents can help guide their children's media experience. Putting questionable content into context and teaching kids a700ut advertising contributes to their media literacy (素养) ," it says.

The pediatricians' group says parents should have “screen-free zones"  and TV should be turned off during dinner. At most, it recommends children and teens engage with entertainment media for no more than two hours a day and that should be high-quality content. It is important for kids to spend time on outdoor play, reading, hobbies  and  using their imaginations  in free  play.“ Kids  under 2 should not use television and other entertainment media because their brains are developing quickly and they learn best from direct human interaction," the group says.

An article on screen time by t.he Mayo Clinic also notes problems linked t.o over screen time, including  being  fat, irregular  sleep , behavioral  problems , weak  school  performance , violence  and  less time for active and creative play.

小题1:Parents have more negative than positive feelings about media consumption like    

A.computers

B.smart phones

C.video games

D.tablets PCs小题2:Most parents don't worry about kid's media use because        

A.they can limit the screen time

B.they want their children happy

C.they also grew up with technology

D.they can teach their children themselves小题3:From the data of the survey, we learn       

A.children in media-centric families are smarter than others

B.children in media-light families spend one hour watching TV

C.more than half of the parents think children's media use was a problem

D.media-centric children spend more than three hours each day on media use小题4:To make parenting easier, most parents probably        

A.try to persuade their children to read books

B.ask their children questions while watching TV

C.allow their children watching TV or using computers

D.turn to toys or activities to keep their children occupied小题5:Which of the following is a suggestion by the researchers?

A.Media use time for babies under 2 should be limited.

B.Entertainment media use should be high-quality content.

C.Schools should provide more time for active and creative play.

D.Home media use should provide platforms for illegal and risky behaviors.

题型:单项选择题

男,52岁。高血压脑出血1天入院。浅昏迷状态,生命体征尚可,心肾功能良好,脑CT示颞叶出血约50ml。最合适的治疗是()

A.手术清除血肿

B.使用止血药物

C.使用降颅压药物

D.使用降血压药物

E.鼻饲以保证营养

题型:单项选择题

在职职工(30岁)在定点医院进行CT检查,收费价格为200元,则其个人应负担金额为()元。

A.40

B.20

C.15

题型:单项选择题

各车站预留有音频输入接口,可接入(),播放背景音乐。

A.音频控制器

B.音频装置

C.播放器

D.音频播放装置

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