[单项选择]法治指的是（）
A. 一种治国方式
B. 有法可依
C. 法律面前人人平等
D. 违法必究

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 comput
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.

“比较”是确定事物之间相同点和相异点的思维方法，它为客观全面地认识事物提供了一条重要途径。“比较”也是一种有效的历史学习方法。阅读下列材料，回答问题
材料一：
中国古代的“选举”与源自西方、现在流行的“选举”虽然中文字面相同，在实质内容方面无疑是有着根本性的差别的。——戴维·米勒、韦农·博格丹诺《布莱克维尔政治学百科全书》
材料二：
中国进入近代以前，人们心目中所指的“选举”又与现在人们心目中所指的“选举”不同，它不是指人们投票选举代表、议员或者自基层到高级的各级领袖，而完全是指另外的、今人已经相当陌生却正是我们所要叙述的东西。而由此一古代概念的完全更新，也正好可以从一个侧面见出天翻地覆的百年世变。——何怀宏《选举社会及其终结——秦汉至晚清历史的一种社会阐释》
材料三：
“民主”一词在中国古代文献中最早出现于《尚书》：“天惟时求民主，乃大降显于成汤”。意思是说：暴君夏桀残民以逞，不配做民之主；推翻夏桀的成汤才是民主。“我们（雅典）的制度被称作民主政治，那是千真万确的，因为政权不是在少数人手中，而是在多数人手里。——《希腊伯罗奔尼撒战争史》