“If you agree with me，please Dianzan.”Do you know Dianzan is one of the most popular words on the Internet？When you think someone's ideas are right，when you think someone's articles are 1，or when you are moved by what someone writes，you can

    click （点击）the praise sign. Anyhow，clicking the praise sign 2that you agree with someone or praise someone.

    Dianzan is a kind of Chinese Internet language.People 3 use it when they surf the Liternet.There is a function（功能）of Dianzan in the QQ space.The QQ space has had the function 42010.It didn't become very popular until Sina blog（新浪博客）5the function of Dianzan.In recent years，it has become more and more popular.When the 2015 New Year came，Chinese leader Xi Jinping used the word Dianzan to praise and 6his thanks to the great Chinese people.

    Websites can know how many people support some ideas 7counting how many people click the praise sign.Experts can know 8teenagers are caring about through what they click the sign for.That can help them solve teenagers'9.

    Clicking the praise sign is really a（n） 10thing.Have you ever clicked the sign for anybody on the Internet

在实验课上，同学们分别制作了“洋葱表皮细胞”和“人口腔上皮细胞”的临时装片，并用显微镜观察细胞。请据图回答：

①学生的考场作文有的感情真挚、观点深刻；有的字字珠玑，读来酣畅淋漓、满口余香；有的却不忍卒读，难以入目。

②我们的时代不乏热门作品，但我们也要清醒地认识到，真正的好作品、精品力作是微不足道的，是少得可怜的。

③陈邦彦书法洒落劲健，如兔起鹘落，气贯长虹，字里行间奔突着一股清刚俊逸又不失法度的气息。

④近段时间来有关李嘉诚旗下产业撤资、罢工等诸多话题甚嚣尘上，但大多数人都持观望态度，静待新的确切消息。

⑤郑渊洁说：我不知道国外的军人爱不爱唱歌，反正我服兵役的年代，中国军人特爱唱歌，唱的当然都是趾高气扬、荡气回肠的歌曲。