题目

Big as the World is, Home is Where We Go Back (《世界再大，也要回家》) is a group of hand-drawn comics by a college student. It shows us parents’ deep love when their daughter is at home and away.When you were away from home, your parents would eat simple and vegetarian, three meals a day…and every day when you were at home, they would prepare a whole table of food for you.When you were away from home, your parents would mention you to others from time to time…and when you were at home, they would complain about you a lot.When you were away from home, you were the competent an如图是“研究导体产生的热量跟哪些因素有关” 的实验装置，两根电阻丝的电阻R甲＜R乙，通电后会发现______（填甲或乙）电阻丝上火柴先被点燃。在研究导体产生的热量是否跟电流有关时，操作方法是____________________________________ ,记录并比较___________（同一／不同）电阻丝上火柴被点燃的时间.