4张扑克牌如图（1）所示放在桌子上，小敏把其中一张旋转180°后得到如图（2）所示，那么她所旋转的牌从左起是（     ）

材料一  在欧洲各国，战争爆发之初，一般市民以狂热的态度欢迎它的到来，这是人所共知的。对他们来说，战争脱离了平凡的日常生活，充满了兴奋和刺激，为国家而战被认为是崇高的理想……无论对英国人、法国人还是对德国人来说，战争就是保卫和强化国家，在当时没有比这更好的思想观念了……在这一阶段，战争的经济成本尚未得到重视，强调的只是政治心理上的价值。

在1914年夏季，大部分人把战争当作短期现象考虑，没有想到它将可能从根本上变革各国的社会和国际的秩序。

与当初的期待相违，战争经过数个月不但没有终结，反而又持续了一年、两年，由此开始了超越以往的对战争的意义和目标的认真的探讨。

——《20世纪的战争与和平》

材料二  在世界近代史上，西方国家认为进行战争是国家的正当权利。在此基础上，国际法的奠基人格劳秀斯主张国与国之间的战争应该受到法律的约束，提出交战规则以及关于战俘待遇、武器使用、除了军事必要外财产不应受到损害等原则。这些原则后来被西方国家普遍接受。

    When life takes you away from home, take technology to help guide and entertain you. APPs can help make your trip easier and more fun.

    Trip It

    Trip It is a helpful APP to organize travel plans. Sign up for a free account at the Trip It website and download the APP to have all of your travel plans handy in one place.

    Google Translate

    When traveling outside your home country, you may need some language assistance. Google Translate is an APP that can help you understand a language other than your native tongue. The Google Translate APP translates between 103 different languages. Copy and paste text into the APP to see a translation. You can also handwrite text onto the screen.

    Fotor

    The Fotor APP lets you edit your photos and add filers for special effects. The APP has been updated recently with new editing features so users can edit their photos more easily. Fotor has added a slider to give users greater control of the edits. Editing effets can be saved as favorites to use them easily later.

   Offline APPs

    Traveling often means you are offline and away from the Internet. When camping in the wild, flying on a plane, sailing on a boat or riding in the car, you may not have an Internet connection. If you are traveling outside your home country and away from Wi-Fi, you should use Offline APPs to avoid large bills for using international data.