The boat went the lake.[ ] A. across B.

I was a single parent of four small children, working at a low paid job. Money was always tight, but we had a (1) over our heads, food on the table, clothes on our backs, and if not a lot, always (2) . Not knowing we were poor, my kids just thought I was (3) . I’ve always been glad about that.
It was Christmas time, and although there wasn’t (4) for a lot of gifts, we planned to celebrate with a family party. But the big (5) for the kids was the fun of Christmas (6) .
They planned weeks ahead of time, asking (7) what they wanted for Christmas. Fortunately, I had saved MYM120 for (8) to share by all five of us.
The big (9) arrived. I gave each kid a twenty-dollar bill and (10) them to look for gifts of about four dollars each. Then everyone scattered. We had two hours to shop; then we would (11) back at the "Santa’s Workshop"
Driving home, everyone was in high Christmas spirits, (12) my younger daughter, Ginger, who was unusually (13) She had only one small, flat bag with a few candies—fiftycent candies I was so angry, but I didn’t say anything (14) we got home. I called her into my bedroom and closed the door, (15) to be angry again. This is what she told me.
"I was looking (16) thinking of what to buy, and I (17) to read the little cards on the ’Giving Trees’. One was for a little girl, four years old, and all she (18) for Christmas was a doll. So I took the card off the tree and (19) the doll for her. We have so much and she doesn’t have anything. "
I never felt so (20) as I did that day.

二、完形填空

A．roof

B．hat

C．sky

D．star

在物理实验中，把一些微小量的变化进行放大，是常用的物理思想方法。如图所示的四个实验，运用此思想方法的是 

（二）　　背景资料：某通信施工单位承担某地移动通信基站安装工程，主要内容为基站设备、天馈线系统、传输设备及配套电源设备的安装和测试。设备及主材由建设单位采购。　　施工过程中，发生下列事件：　　事件一：开工初期，项目经理部组织现场检查时，没有找到材料的现场检验记录，现场负责人解释，材料由建设单位提供，都有合格证，不需检验。　　事件二：项目经理到A现场检查时，施工人员正在塔上安装天馈线。由于天气炎热一些人员赤膊作业，个别人不系安全带、工作完成后随手把工具从塔上抛下。　　事件三：六级大风天气，现场负责人指挥施工人员继续进行塔上作业，保证了工程进度。　　事件四：当地质量监督站到现场检查，现场施工负责人以没有与质量监督站发生任何关系为由拒绝接受检查。　　问题：

建设单位提供的有合格证的材料是否需要检验，为什么？

关于炎症的叙述，下列哪项是正确的()

A．炎症对机体均有利

B．任何机体都会发生炎症反应

C．急性炎症也可出现以增生为主的病变

D．慢性炎症均由急性炎症发展而来

E．炎症反应不会损伤机体

DCS系统采用什么网路结构？