新星小学的小科技迷们正在实验室上课,辅导老师向他们宣读了大发明家南天先生的征稿信,希望孩子们为他提供一些最实用、最有价值的发明素材,以供自己研制开发。大家正在沉思的时候,宫琴举起了手,“老师,我有一个愿望,这个愿望在我心里已酝酿很久了。”“好哇,宫琴,”辅导老师点了点头,“请把你的想法说出来。”“眼看夏天就到了,正是蚊子开始横行的时候,我想请南天先生研发一种能消灭蚊子的武器。”“哈哈……”话音一落,同学们都 Star science and technology primary school fans are in the laboratory class, the tutor read out the great inventor Nan Tian draft letter, I hope the children provide him with some of the most useful and most valuable inventions for their own research and development. Everyone is contemplating, the palace piano raised his hand, “Teacher, I have a desire, this desire has been brewing in my heart for a long time. ” “Well wow, palace piano, ” The counselor nodded, “” Seeing the summer is up, it is mosquitoes began to run rampant, I would like to ask Mr. Nantian to develop a kind of weapon to eliminate mosquitoes. “” Haha ... " Voice falling, students are