国债发行时经常见到这样的现象：虽然很多老百姓半夜三更就冒着风寒排起长队，但大多数网点开门不到1小时，就卖光了全部国债，许多市民失望而回。国债热卖的主要原因是

    Many people like spring, because they can go out and do many kinds of activities. We made a survey about the activities that people like to do in spring. Here are the results.
Scott：
    In spring, I often visit my uncle and I like fishing with him. I also like boating and enjoy the beach. Last spring my uncle and I went boating. The dolphins came so close to us. It was very amazing. I hope that I can go there again soon.
Linda:
    My favorite spring activity is gardening (园艺). I think it is relaxing to work in the garden. I grow many flowers in my garden every year. They are so beautiful.
Nancy：
    I love spring. I love going to the beach and spending a whole day there. It is so relaxing to lie on the beach. I also like surfing in the sea.
James：
    I am twelve years old. My favorite spring activity is swimming. I started to learn swimming when I was seven years old. I always have a good time with my friends in the river.

若关于x的不等式xe^x﹣2ax+a＜0的非空解集中无整数解，则实数a的取值范围是（   ）

政治思想文化领域的活动是人类社会生活的核心内容之一，探究中外政治思想文

化发展的进程和重要内容，有助于我们进一步认识人类社会发展的基本情况。

【思想篇】

【政治篇】

【改革篇】

材料一  及秦孝公用商君，坏井田，开阡陌，急耕战之赏，……倾邻国而雄诸侯。……至于始皇，遂并天下。                              ——《汉书·食货志上》

材料二  如果说从平城到洛阳的北魏是汉化先行者，那么西魏、北周就是追随者。……北周政权，折射出中华民族历史重新走向全国统一的曙光。……隋朝的统一，建立在魏晋南北朝民族大融合的基础之上。                                   ——《简明中国史读本》

材料三  1883年，日本人在东京的鹿鸣馆仿照西方国家的生活方式进行活动。

You have been sitting on my hat and now it is badly out of______．（   ）