小光在平面直角坐标系中画出了一个长方形，若他想把这个长方形向左平移3个单位长度，

乳母膳食维生素A的RNI为1200μg/日，与之相当的国际单位（IU）数值是（）

A.4000

B.3600

C.1200

D.1000

E.360

Do you like shopping? Or does the thought of wandering round the shops fill you with terror? For some of us，shopping is an enjoyable way of spending our spare time and our money. For me．it's something I would rather avoid．Thank goodness for the Internet! It's more convenient to buy CDs，electrical items，even food，from the comfort of your sofa．But that’s not the only reason：price is an important factor．We can buy goods and services cheaper online. But sometimes the problem is knowing what to buy．This has led to a type of shopping called “showrooming”．

Showrooming is something I've done．I will go to a shop to see，touch and try out products but then go home and buy them online at a knock—down price．I'm not alone in doing this．Research by a company called Foolproof，found 24％of people showroomed while Christmas shopping in 2013．

Amy Cashman，Head of Technology at TNS UK，says the reasons for this new shopping habit are that“people are lacking time，lacking money and they want security about the products they are buying．”She explains that consumers are not only shopping online at home but they are using the Internet in store or on their smartphones to shop around．

But does this mean technology will kill shops? Certainly shops will change．They will have to offer more competitive prices or encourage people to buy more by giving in—store discounts or free girls．

We mustn’t forget that buying in a shop means you can get expert advice from the sales assistant and you can get good aftercare．It’s good to speak to a real human rather than look at a faceless computer screen but at least by showrooming，you get the best of both worlds!

小题1:The two questions in Paragraph l are raised to       

A．introduce the topic

B．give two examples

C．compare different opinions

D．get answers from readers小题2:What does showrooming mean in the text?

A．Trying in shops and buying online．

B．Showing products in a room．

C．Buying something in a store．

D．Shopping on the Internet．小题3:According to Amy Cashman，which is not the reason for showrooming?

A．The lack of time．

B．The comfort of the sofa．

C．The shortness of money．

D．The security of the product．小题4:What can be inferred from Paragraph 4 ?

A．Online shops will disappear．

B．Free gifts will surely promote sales．

C．Shops need necessary changes．

D．Shops will be replaced by online shops．小题5:The author's attitude towards showrooming is         

A．critical

B．neutral

C．supportive

D．casual

被称为“社会学综合理论的创始人”和“社会学眼界的开拓者”的社会学家是（）

A.马克思

B.孔德

C.斯宾塞

D.韦伯

别络如何加强十二经脉中表里两经在体表的联系？