题干

如图,正方形纸片ABCD中,对角线AC、BD交于点O,折叠正方形纸片ABCD,使AD落在BD上,点A恰好与BD上的点F重合,展开后折痕DE分别交AB、AC于点E、G,连结GF,给出下列结论:①∠ADG=22.5°;②tan∠AED=2;③SAGD=SOGD;④四边形AEFG是菱形;⑤BE=2OG;⑥若SOGF=1,则正方形ABCD的面积是6+4 2 ,其中正确的结论个数为(  )

A:2

B:3

C:4

D:5

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答案(点此获取答案解析)

B

同类题3

根据短文理解,选择正确答案。

    I was waiting for a phone call from my agent. He had left a message the night before, telling me that my show was to be cancelled. I called him several times, but each time his secretary told me that he was in a meeting and that he would call me later. So I waited and waited, but there was still no call. Three hours passing by, I became more and more impatient. I was certain that my agent didn't care about my work, and he didn't care about me. I was overcome with that thought. I started to shout at the phone, “Let me wait, will you? Who do you think you are?”

    At that time I didn't realize my wife was looking on. Without showing her surprise, she rushed in, seized the phone, tore off the wires, and shouted at the phone, “Yeah! Who do you think you are? Bad telephone! Bad telephone!” And she swept it into the wastebasket.

    I stood watching her, speechless. What on earth...?

    She stepped to the doorway and shouted at the rest of the house, “Now hear this! All objects in this room---if you do anything to upset my husband, out you go!”

    Then she turned to me, kissed me and said calmly, “Honey, you just have to learn how to take control.” With that, she left the room.

    After watching a crazy woman rushing in and out, shouting at everything in sight , I noticed that something in my mood (情绪) had changed. I was laughing. How could I have trouble with that phone? Her anties helped me realize I had been driven crazy by small things. Twenty minutes later my agent did call. I was able to listen to him and talk to him calmly.

同类题4

创新是民族进步的灵魂,是国家兴旺发达的动力。阅读材料,回答问题。

材料一:2015年大众创业、万众创新高峰论坛于2015年10月在北京举行。近年,国务院连续推出系列支持创业创新的政策措施,各地陆续出现了一批模式新颖、高效服务、专业辅导、资源集聚、运营顺畅的众创空间,形成了“孵化+创投”、“创业苗圃+孵化器+加速器”等多种发展模式,不断催生出新的产业形态,颠覆着传统的制造和消费模式,乃至产业布局和投融资方式,全国近30万项技术成果通过技术市场转移转化。总之,大众创业、万众创新推动了经济良性良好发展。

材料二:推动大众创新,要不断完善保护知识产权的法律和政策。全国人大成立60年来,在推进知识产权事业方面发挥了重要作用:陆续制定和修订了商标法、专利法等相关法律;2014年4月至5月间,全国人大常委会对专利法实施情况进行了执法检查;11月1日全国人大教科文卫委员会听取国家知识产权局关于落实全国人大常委会检查专利法实施情况的报告及审议意见情况的汇报;11月至12月,北京、广州、上海三地的市人大常委会根据全国人大常委会的决定相继批准设立知识产权法院。

材料三:随着中小学生成长环境的变化,中小学生身心发展呈现了新的特点,为更好地适应现代教育形势,教育部于2015年8月27日印发了新修订的《中小学生守则》。守则保留了2004年守则中仍具时代价值、体现中华传统美德的内容,如热爱祖国、热爱人民等;补充了一些更具操作性、学生可以做到的具体行为规范内容,如主动分担家务、自觉礼让排队等;增加了新时期学生成长发展中学校、社会和家庭高度关注的内容,如养成阅读习惯、低碳环保生活等。新版《中小学生守则》既“高大上”,又“接地气”,新增内容与时俱进,时代特色鲜明。