科学家用枪乌贼的神经细胞研究钠离子通过细胞膜的运输方式，实验如下：
实验方法
现象
①
向枪乌贼的神经细胞内注入微量的放射性元素24Na
神经细胞周围溶液中出现24Na
②
步骤同①，并加入某种药物
神经细胞周围溶液中未出现24Na
③
步骤同②，并加入ATP
下列说法错误的是（ ）
A：神经细胞排出24Na需要消耗ATP
B：“某药物”的作用机理是抑制细胞呼吸
C：24Na通过细胞膜的方式是主动运输
D：由实验②③可知，神经细胞运输24Na需载体蛋白
下面哪一幅对联反映了五四运动取得了一定胜利( )
合唱时“低音声部”和“高音声部”中的“低”和“高”是指（ ）
Today is Sunday. We don't go to school. So after breakfast I go to the park with some of my good friends. In the park, there are many people. They are doing exercise. Some women are dancing. Some people are playing badminton. Some girls are skipping, and some people are walking and running. Why do they work so hard? Because they want to be strong and healthy.
