题目

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Parents should help their children understand money. So you may start talking about money when your child shows an interest in buying things, candy or toys, for example. Tell them the basic use of money. Begin explaining the use of money by showing how people buy things. If your child wants to have a toy, give him the money and let him hand the money to the saleswoman. When your child grows a bit older and understands the use of money, you can start explaining more ways物质的加热：酒精灯内的酒精量最多不应超过其容积的2/32/3，最少不低于其容积的1/3．熄灭酒精灯用灯帽盖灭灯帽盖灭．不得向燃着的酒精灯里添加酒精酒精，洒在台面上的酒精着火应立即用湿抹布湿抹布去扑盖．