关于神经系统的叙述错误的是（  ）

如图所示的实验，甲乙两个瓶中都装有澄清的石灰水．在吸入气体时，左手捏紧皮管，右手松开．在呼出气体时，右手捏紧橡皮管，左手松一下．结果，乙瓶中的石灰水明显是变浑浊．

张华和同学到游子山参加社会实践活动，拾到一些不规则小石块，他们很想知道这种小石块是什么材料做成的，就把它们带回学校利用天平和量筒来测定这种小石块的密度。

完形填空

    The 2013 Talent Show in our school was a night to remember! It was a great1Students, parents and teachers2, sang and played instruments. There were more than thirty3. Our English teacher Jason Cruise4an English song. He won the prize 5 the best performer. 6a reporter from our school magazine interviewed him, he said that singing was7important to him. The prize for the funniest act8to Paul Black, because he danced like a drunken (喝醉的) man without music. And his classmates said he was the9boy in the class.

    Many thanks to the parent and the student volunteers. They made this10show possible. Many thanks to all of the people who helped.

请说出元代散曲名家马致远的名曲《秋思》中的生物和非生物。(附《秋思》：枯藤老树昏鸦，小桥流水人家，古道西风瘦马。夕阳西下，断肠人在天涯。)

  曲中的生物有：____ 。

  曲中的非生物有：____ 。