Spring is coming．People in different countries like different outdoor activities．Leo，a reporter from Learning English in interviewing（采访）some students．Here is what they have said．
    Mary （13, America）　　
    I want to go out of the city to a beautiful field. It's happy to smell beautiful flowers, touch green grass and take some photos. And I like to have a picnic in the field, It's interesting!
    Jim （14, Canada）　　
    The weather turns warmer and they days become longer in spring. It's a good time to go camping. It would be fun to sleep in a tent. I enjoy the comfortable weather too.
    Tony （13, England）
    In spring, I like going cycling alone. It can not only make me enjoy the beautiful season but also help me became stronger. I can write something about what I see on the way.
    Wang Fang （12, China）
    I'm good at making all kinds of kites. And in spring. I like flying kites with my family or my friends in the park. One of us holds the kite. and another one catches the line. It's exciting to see the kite flying high in the sky.

方程${\log }_{3}x+x=3$的解所在的区间是                             （  ）

2016年2月19日，******在党的新闻舆论工作座谈会上强调，党的新闻舆论工作是治国理政大事，要适应国内外形势发展，深入开展马克思主义新闻观教育，引导新闻舆论工作者做党的政策的传播者、时代风云的记录者、社会进步的推动者、公平正义的守望者。这要求党的新闻舆论工作（  ）

①坚持党性原则，发挥社会主义核心价值观的导向作用②必须立足实践，弘扬以改革创新为核心的时代精神

③必须明辨是非，在价值选择基础上做好价值判断④坚持以人为本，满足人民群众多元化的价值需求

实验室里常用来制取氧气的方法有____ 种；工业上制取大量氧气的方法是采用分离液态空气的方法，该过程发生的是____ （填“物理变化”或“化学变化”）