下列各图中，哪一个图形是由“F”平移得到的是( ) A． B． C． D．

阅读理解。

     The New Year is coming and as usual there are great hopes, dreams and resolutions to make.

However, I will stop hoping and dreaming this time and make the resolutions only.

     First of all, I'm going to spend less time talking and more time doing. In the past (过去的) year, my

friends and I spent too much time talking nonsense (胡说八道). There is much work to do in the new

year, so I'm going to give the year to it.

     Secondly, I'm going to spend less time in front of the TV and the computer. These are fun things but

they are also very time-wasting (浪费时间的). It's better to spend the time reading books.

     Lastly, I'm going to join in fewer sports activities. It is better to do well in the lessons than on the

playground. The legs will get old and cannot play soccer for very long, but the mind will be much more

durable (持久的).

     I made lots of resolutions but didn't keep them before. I'm not going to do that again in the new year.

I'll try my best to keep my resolutions.

根据短文内容，简答问题。

1. How many resolutions does the writer make for the new year?

    ______________________________________

2. What does the underlined word "it" refer to?

    ______________________________________

3. What is the writer going to do with the TV and the computer?

    ______________________________________

4. Why is the writer going to join in fewer sports activities?

    ______________________________________

5. What did the writer do with his resolutions before?

    ______________________________________

小红看一本故事书，3天看了54页，照这样计算，要看完162页的这本书，还需几天？（用比例解）

如图1所示，在2010上海世博会上，拉脱维亚馆的风洞飞行表演，令参观者大开眼界，最吸引眼球的就是正中心那个高为H=10m，直径D=4m的透明“垂直风洞”。风洞是人工产生和控制的气流，以模拟飞行器或物体周围气体的流动。在风力作用的正对面积不变时，风力F=0.06v²（v为风速）。在本次风洞飞行上升表演中，表演者的质量m=60kg，为提高表演的观赏性，控制风速v与表演者上升的高度h间的关系如图2所示。g="10" m/s²。求：

⑴设想：表演者开始静卧于h=0处，再打开气流，请描述表演者从最低点到最高点的运动状态；

⑵表演者上升达最大速度时的高度h₁；

⑶表演者上升的最大高度h₂；

⑷为防止停电停风事故，风洞备有应急电源，若在本次表演中表演者在最大高度h₂时突然停电，为保证表演者的人身安全，则留给风洞自动接通应急电源滞后的最长时间t_m。（设接通应急电源后风洞一直以最大风速运行）

在工程建设程序中，建设单位进行工具、器具、备品、备件等的制造或订货是( )阶段的工作。

A．建设准备
B．施工安装
C．生产准备
D．竣工验收

PKU患儿的饮食应为_____________，此饮食应从______________。