下列文学常识说法不当的一组是（          ）。

1914年，“一粒火星”引燃了第一次世界大战．这“一粒火星”是指（　　）

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　　I have a good name, Henry. I am fourteen years old. I1England. I’d like2you my dream in the future. I will be a doctor3ten years. I will work in London4it is a beautiful city. It’s our capital. As a doctor, I will meet all kinds of sick people. But I’m glad5help people. I will live in a big house6my family because I don’t like7alone. I will have a car, a nice car. 8I can’t drive now. Because I’m too young, my mother9allow(允许)me to drive now. I will have a robot. The robot will help me10my housework. I hope my dream will come true one day.

过氧化钠(Na₂O₂)是一种淡黄色固体，常温下与二氧化碳发生反应的化学方程式为2Na₂O₂+2CO₂===2Na₂CO₃+O₂．现将沾有Na₂CO₃固体的棉花放入如图的烧杯中，再缓慢向烧杯中倒入适量稀硫酸，使之与杯底的Na₂CO₃反应产生CO₂气体，发现蜡烛火焰熄灭，沾有Na₂O₃固体的棉花燃烧起来．下列从实验获得的信息中，你认为不正确的是 （）