题目

If you want to see a thing well, reach out and touch it! That may seem a strange thing to say. But touching things can help you to see them better. Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth and cool the ball is. You can feel how heavy the glass is. When you feel all these about the ball, you really see it. With your skin, you can feel better. For example, your fingers can tell the difference between two coins in your pocket. You can feel a little drop of water on the back of your hand, too. You can even feel sounds aga下列符合化学实验安全要求的是（ ）A.易燃易爆药品要远离火源B.实验剩余的药品要放回原瓶C.向燃着的酒精灯里添加酒精D.可以通过品尝区别药品