特殊管理药品包括（） A.精神药品 B.毒性药品 C.麻醉药品 D.生物药品 E.放

实验是化学学习的重要手段，它能帮助人们认识物质的性质，同时能感悟微观粒子的特征．请根据以下实验回答问题．

Ⅰ．【实验1】某校兴趣小组用图1装置加热碱式碳酸铜．

（1）实验观察到绿色粉末变黑色，由此现象比较物质的热稳定性：绿色粉末             黑色粉末．（填写“大于”、“小于”、“等于”）

（2）为检验气体产物烧杯中盛放的试剂是                       （填写名称）．

（3）实验结束时的正确操作顺序是                    ．（填写序号）

①熄灭酒精灯        ②将导管从烧杯中取出

Ⅱ．【实验2】为了研究微粒间的空隙，某校兴趣小组同学做了水和酒精混合的实验．

取一根约30cm长一段封口的细玻璃管．先往玻璃管中加入的物质应是                  ，你的理由是                                                   ．

Ⅲ．【实验3】高锰酸钾是日常生活常用的一种杀菌剂，又称为“PP粉”．它是一种紫黑色固体，取少量固体，做如图2实验．

（1）实验步骤①中操作a的名称是                    ，其作用是                      ．

（2）上述实验中，步骤                    （选填实验步骤的序号）说明物质是可分的．

【真题试题】（2006年单项选择第13题）

A．查阅公司财务会计报告

B．抽回出资

C．股东大会的提案权

D．转让股份权

王安石关于造就人才的纲领有哪些内容？

机构信用代码系统中机构基本信息的采集以及机构信用代码证的发放主要依托（）进行。

A.人行各省级分行

B.人行支付结算司

C.商业银行

D.外包信息收集机构

Current Group, a Germantown-based technology firm, has taken over an ordinary looking house in Bethesda and turned it into a laboratory for smart-grid technology, the system the company believes will bring the nation’s electricity grids into the digital age.

In the front yard stands a utility pole hooked up to a special transformer that connects the power lines to high-speed Internet. Hundreds of sensors attached to the lines monitor how power flows through the home. That information is then sent back to the utility company.

The process lets a utility more efficiently manage the distribution of electricity by allowing two-way communication between consumers and energy suppliers via the broadband network on the power lines. Based on data they receive from hundreds of homes, utilities can monitor usage and adjust output and pricing in response to demand. Consumers can be rewarded with reduced rates by cutting back on consumption during peak periods. And computerized substations can talk to each other so overloaded circuits hand off electricity to those that have not fully loaded, helping to prevent blackouts.

Some utility companies have launched initiatives to give consumers data about their energy consumption habits in an effort to lower energy bills. Smart-grid technology takes such programs further by automating electricity distribution, which would make grids more reliable and efficient.

By partnering with utilities, the company hopes to tap into $4.5 billion in stimulus grants intended to encourage smart-grid development. When he announced the funding, President Obama pointed to a project in Boulder, Colo. , as an example of a successful smart-grid experiment. Current is one of the companies working on the project.

Current’s chief executive Tom Casey believes the technology will help utility companies better distribute electricity produced by renewable resources, such as solar panels or wind farms. " A smart grid’s system can be paired up with the renewable resources so that when the renewable source is varying, the overall load can be varied as well, " Casey told the House Select Committee on Energy Independence and Global Warming. " This will reduce or eliminate the need for backup coal or gas-based power generation plants. \

What benefit can the smart-grid technology bring（）

A. Substations can talk to each other through computers

B. The consumers and energy suppliers can have direct communication

C. Consumers can be rewarded for using less electricity

D. The electricity supply of a certain area can be adjusted accordingly