神经细胞间可以通过一种特殊的介质来传递信息，含有传递分子的囊泡与神经细胞的质膜融合之后再打开，将传递分子释放到神经细胞外部．这属于（　　）

下列离子或分子在溶液中能大量共存，通入CO₂后仍能大量共存的一组是（　　）

如图所示，水平桌面上两个相同容器中分别放有深度相同的甲、乙两种液体，液体密度关系为ρ_甲＜ρ_乙，则液体的质量m、液体对容器底部的压强p_底、容器对桌面的压力F、容器对桌面的压强p_桌等关系，正确的是（　　）

阅读理解

Alan and Cindy are in the same school. There are many school rules here. First, they can’t listen to music in the classroom or hallways. But they can listen to it outside or in the music room. Second, they can’t eat in the classroom but they can eat in the dining hall. Can they wear hats in class? No, they can’t. What other（其他的）rules do they have? They can't fight with their（他们的）classmates, either. Fights can make the teachers really unhappy…

根据短文内容，完成表格