材料一  税收政策会对市场参与者的行为和利益产生重要影响。假设某制造企业的某一产品当前销售单价为9.8万元（其中包含企业每销售一件产品应缴纳的税额1.8万元）,年销售量10万件。现对该企业销售产品实行免税措施，免税后单价为9.2万元，年销售量为13万件。

材料二  智能制造是新一轮工业革命的核心。为主动应对世界新技术革命挑战，全球工业大国都在全力抢占智能制造的制高点，构筑全球新战略。经济新常态下，我国企业税负过重等老问题依然突出，弱化了企业创新意愿和创新能力，减税已成为当前推动中国制造向中国智造转型升级的迫切要求和重要选择。

结合材料，运用《经济生活》知识，回答下列问题：

揭开维新变法运动序幕的事件是（    ）

   My friend Tony is an American1 . He is ten years old. He lives2his family in China now. There are3 people in his family; his mother Mrs. Green, his father Mr. Green and his little sister Amy. He has a white cat.4name is Betty. Look！Amy is playing5 Betty. His father, Mr. Green, is watc­hing TV. His mother is doing housework. What about Tony? He is doing6Chinese homework. He can't  7Chinese well, but he likes Chinese very much. Tony's8works in a TV station. His father works in a school as an9 teacher. Tony and his sister  10 to the same school.

如图甲所示的实验装置进行实验，并将实验数据描绘成如图乙所示的图象．