向一定量CaCl₂和HCl的混合溶液中，逐渐加入Na₂CO₃溶液，反应过程中产生气体或沉淀的质量与加入的Na₂CO₃溶液的质量关系如图，下列说法正确的是（   ）

1885年试制汽车成功，被成为“汽车之父”的德国人是（    ）

   I was born in the Tronto, Canada. Life looked bright and was filled with hope for my parents and me. My father and mother were married in 1980, and I was born next year.
   As I grew into a man, I often looked to my father for advice and support. There were many things about his character that I admired, but like any young boy, I often thought that my father's ideas were from the past and out of date.
   I did well as a student and was the first person in my family to graduate from university. I went on to be a university professor and writer, and most people would say that I have had a very successful life. But I know much of my success is because of the lessons that he passed onto me.
   On Father's Day, I will look in the mirror and smile. My dad gave me many gifts, including my now bald head (秃顶), and the friendly smile that my friends say I have.
   Thank you again, dad. I miss you. Happy Father's Day.