如图，两个边长相等的正方形ABCD和EFGH，正方形EFGH的顶点E固定在正方形ABCD的对称中心位置，正方形EFGH绕点E顺时针方向旋转，设它们重叠部分的面积为S，旋转的角度为θ，S与θ的函数关系的大致图象是(   )

今年是抗日战争胜利70周年。抗日战争是一场伟大的正义战争，是世界反法西斯战争的重要组成部分。阅读材料，回答问题。

材料一：争取抗战胜利的中心关键，在使已经发动的抗战发展成为全面的全民族的抗战。只有这种全面的全民族的抗战，才能使抗战得到最后的胜利。

材料二：1942年1月，日军进攻缅甸，英军节节败退，英国政府正式向中国政府请求迅速派兵入缅协同英军作战。中国政府即派出10万远征军入缅，后又不断增兵。由于中国战场和印、滇、缅战场牵制日军达130万之众，使日军无法调往太平洋，大大减轻了美国的压力。

1943年11月，同盟国(中美英)召开三国首脑会议，讨论中国和亚洲有关重大军事、政治问题，包括联合对日作战和战后处置日本。

1943年10月，中、美、英、苏四国代表签署《四国宣言》，提出：“为了维护国际和平与安全，在重建法律与秩序和创立普遍安全制度以前，它们将彼此协商，必要时并将与联合国家的其他成员进行协商，以便代表一个国际共同体采取共同行动。”

材料三：帝国所以向美英两国开战，实亦为……东亚之安定而出此……自交战以来……战局并未好转，世界大势亦不利于我，加之敌方最近使用残酷之炸弹，频杀无辜，残害所及，真未及逆料，……此朕所以饬令帝国政府接受联合公告者也。

    New Sciencenter Featured Exhibition: Ocean Bound!

    Opening weekend

    Member Preview: Friday, February 3, 6—8 pm

    Public Opening: Saturday, February 4, 10 am — 5 pm

    Start a journey through watersheds to see how everyone's actions affect the health of our ocean. Enjoy interacting with 3D watershed models, piloting a full-size submersible from mountain stream to ocean, guiding water safely through a hazardous maze, diverting pollutants as they travel through storm-water drains, playing with early education exhibits inside a clubhouse, and many more engaging interactive exhibits.

    Showtime! Plant and Animal Double-Takes

    Saturday, January 21, 2 pm

    Have you ever looked at a living thing and wondered, Is that a plant or an animal? Join Sciencenter educators Julie Yurek and Sarah Cox to look into species that make you take a second look. Explore the surprising differences between these plants and animals.

    Showtime! Solar Power Goes Nano

    Saturday, February 11, 2 pm

    Did you know scientists are using nanotechnology to store solar energy? Learn about solar power and the emerging use of hydrogen fuel cells. Justin Sambur, NSF Postdoctoral Research Associate at Cornell's Department of Chemistry and Chemical Biology, will demonstrate a model race car that uses a hydrogen fuel cell kit powered by solar energy.

    Special Showtime! Presentation: Animal Adaptations for Winter

    Wednesday, February 22, 1 pm

    Have you ever wondered how animals survive in winter? Join Emma Brofsky of Cornell's Naturalist Outreach Program to explore animal adaptations for winter and learn how biology helps animals cope with cold weather, food shortages, and limited habitats. Touch animal pelts and do a hands-on activity on animal insulation.