题目

Hello, I'm Meg. I'm twelve years old. I have a brother and a sister. My brother is nine and my sister is only four. I like hamburgers and salad. My brother likes tomatoes and my sister likes ice cream. We have a small sports collection. We all like tennis. Today is my mother's birthday. It's January 21st. There's a big cake on the table. How much is it? Do you know? It's seven dollars. Come to my mother's birthday party and have some cake. 判断下列各题的正误，正确的填T，错误的填F。 （   ）1. Meg is twelve years old. （   ）2. Meg’s brother is four and hi一台机器在200s内做了6×105 J的功，这台机器的功率是________kW。