我国经济重心南移最后完成是在（    ）

假设你叫林洋，收到了你的笔友Susan的一封信，请你给她写一封回信。在信中回答她的问题，提出你的建议，并就此事谈谈你的看法。
Dear Lin Yang,
I have a problem these days. My mother doesn’t allow me to watch TV even on weekends. She says as a middle school student, my job is to study. After I finish my homework, she says, I should read books and watching TV is bad for me. But I think I need a rest and watching TV helps me learn a lot too.
Do you have the same problem? What do you think of my mother’s decision? What should I do?
Yours,
Susan

 Since the epidemic appeared last winter, it ______ about a hundred lives.

根据表格里的内容，选择最佳答案。

Lucy	I like sports. I have ten tennis balls, seven basketballs, four volleyballs and five soccer balls. I play tennis with my friends every day.
Mary	I have five baseballs, five volleyballs, two soccer balls. I like ping-pong. It's easy for me. I often play ping-pong with my classmates. I also have three ping-pong bats and lots of ping-pong balls.
Alice	I don't have any balls. I love sports, but I don't play them. I only watch them on TV.

对比是学习化学的重要方法.下列关于 与CO的比较错误的是(       )