战争与和平是人类社会发展的一对孪生姐妹，战争中孕育着和平，和平中又潜伏着战争。让我们反思战争带来的苦难，共同维护世界的和平。阅读下列材料，回答问题。
材料一

材料二    昨天，1941年12月7日，一个遗臭万年的日子，美利坚合众国遭到了日本帝国海空军突然和蓄谋的进攻……我要求国会宣布：自1941年12月7日星期日，日本进行无缘无故和卑鄙怯懦的进攻时起，合众国和日本国进入战争状态。
                                                                                                                                                   ——罗斯福《一个遗臭万年的日子》
材料三    第一、二次世界大战情况比较表

根据短文内容，选择正确答案。

    The computers changed our lives in the 1980s, the Internet changed our lives in the 1990s, and the robots will change our lives in the new century.

    Do you think there will be robots in people's homes? It's not a dream that every home will have a robot.

    Now, robots are not only able to help people do the housework, they can also help the doctors do the difficult operations, play chess with people, play the piano and so on.

    A new cooking robot is used in Beijing. It can cook all the dishes on the menu; you only need to wait two to four minutes. In the future, the robot will be a nurse, a security (安全）guard, or a partner in your life.

    Experts believe robots will be used everywhere from the industrial (工业的） robots to service robots. In the future, robots will become part of the family, and provide close service for people. We all look forward to the new robot age.

    实验不是毫无选择地测量，它需要              。特别重要的，是要              ，以作为整个探索过程的向导。至于这目标怎样选定，就要              。