轧钢操作台上的控制电压应是（）伏。

阅读下面的短文。将画线部分的句子译成汉语。

     In the early days of the American West, life was difficult. People lived on farms away from other families.

 1. They went to town once a week or once a month. Then they saw their friends and neighbors. 2. On the

farms everyone had lots of work to do. And there was a big problem. One family couldn't build a house alone.

     Then, what did families do to build houses? 3. They asked their friends and neighbors for help. They

invited them to work in a group for a few days. The women cooked together. The men worked on the buildings. 4. For the children, it was like a holiday. There were many other children to play with. Together these people

built a house. They enjoyed working together. At another time the family with the new house would help their

neighbors.  

     Why don't we work with others? 5. It can be fun and life can become easier, too.

1.__________________________________________________________

2.__________________________________________________________

3.__________________________________________________________

4.__________________________________________________________

5.__________________________________________________________

轨道交通车辆的检查规程通常分为（）、月检、定修、架修和大修。

材料分析题（来自作业本）

材料一 我国西南边境的云南省，具有资源、气候和区位三大优势，也有基础产业薄弱、经济结构单一和国民素质较低三大劣势。为此，该省制定了自己的发展战略，即建立绿色经济强省、民族文化大省和中国面向东南亚的国际大通道。

材料二  调查发现，我国有许多省、市、自治区都提出了要大力发展生物技术、信息技术和新材料技术的产业化政策，明显缺乏地方特色。

（1）从材料一中，云南省制定发展战略的思路体现了辩证法的什么原理？（6分）

（2）你认为各省、市、自治区应怎样走自己的特色之路？（6分）

（3）运用唯物史观来说明我们应如何正确处理人与自然的关系。（5分）

使用戊二醛时应注意的是

A．接触戊二醛溶液时应戴橡胶手套，防止溅入眼内或吸入体内

B．盛装戊二醛消毒液的容器应加盖，放于通风良好处

C．浸泡手术刀片等碳钢制品时应先加入0.5%亚硝酸钠防锈

D．使用前应无菌水冲洗干净，并擦干

E．以上都不对

根据《水工建筑物地下开挖工程施工技术规范》(DL/T 5099-1999)，开挖面与衬砌面平行作业时的距离，应根据( )确定。

A．围岩特性

B．混凝土强度的允许质点震动速度

C．开挖作业需要的工作空间

D．混凝土衬砌开挖面

E．混凝土强度