1972年2月，美国总统尼克松发表关于中美关系的演说：“我们必须做的事情是寻求某种办法──我们能够有分歧而不至于成为战争中的敌人。”据此判断中美两国（    ）

随着科技的发展，手机的功能不再紧紧局限于打电话，很多人年轻人喜欢用手机拍照记录生活中的点点滴滴。手机摄像头的镜头相当于一个____镜，图中甲、乙是小明去花果山游玩时用手机拍下的西游记作者吴承恩雕像的两张照片，在摄像头焦距不变的情况下，拍摄乙照片比拍摄甲照片摄像头离雕像____（远／近）些。然而手机的过度使用也给人带来了危害，青少年长时间使用手机很容易导致近视，近视眼应该佩戴____镜来矫正视力。

— _______ your neighbors ________?

— They're kind and helpful.

—where are my____(磁带)?

—They're on the table.

根据短文理解，从A、B、C、D四个选项中选择最佳一项填空。

    Who was the designer of the first helicopter? Who 1 the most famous picture in the world? Who knew more about the human body than most 2? There is an answer 3 all these questions—Leonardo da Vinci(达·芬奇).

    Leonardo may have been the greatest genius(天才) 4 have ever known. He lived in Italy around the year 1500, but many of his inventions seem modern to us today. For example, one of his notebooks has drawings of a helicopter. Of course, he couldn't 5 a helicopter with the things he had. But scientists say his idea would have worked.

    But Leonardo 6 an inventor. He was also one of the greatest artists of his day. By the time he was twenty years old, he was called a master painter, and as he got older he became 7 more famous. Sometimes he drew a hand ten different ways 8 he was ready to paint.

    Many of Leonardo's wonderful paintings are still with 9 today. You may know one of his most famous works—the 10 woman known as the Mona Lisa.