“友谊的小船说翻就翻”“我也是醉了”……各种网络流行用语充斥着我们的生活，给我们增添了不少乐趣。事实上，每一个流行语背后都有一个饱受关注的社会事件。这反映的哲学道理是（    ）

①物质决定意识，意识是物质的反映

②物质和意识相互依赖，不可分离

③主观认识随着客观实际的变化而变化

④认识是主观与客观具体的历史的统一

①乙装置对实验结果不产生影响，因此可以去掉乙装置以简化实验方案

②丙装置玻璃管中若发生化学反应，则一定为置换反应

③若甲试管内溶液变浑浊，丁试管内无明显现象，则该碳的氧化物成分为二氧化碳

④若甲试管和丁试管内溶液都变浑浊，丙处玻璃管内的黑色固体变成红色，则该碳的氧化物成分为一氧化碳和二氧化碳

上述正确的说法个数有（   ）

如图，将三角尺的直角顶点放在直尺的一边上，∠1=30°，∠2=114°，则∠3的度数为（  ）

根据短文内容, 选择正确答案。

    Hi, I am Andy. I am in Class 3, Grade 7. Welcome to our classroom. Isn't it big and clean?

   We all have lockers (柜) in the classroom. The red lockers are girls'. And boys' lockers are yellow. Do you like the colours? I have a locker too. This one is mine (我的). I put many things in it. There are some comic books, a football, and a pair of shoes in it. Jack's locker is beside（在……旁边） mine. There are socks and some paper in it. That one is Tom's. There are many CDs and books in it. His glasses are in the locker too.

    What is in Mary's locker? There is a yellow bag in it. What's in the bag?  We don't know. I guess there are lots of snacks(零食) in it.