若规定“*”的运算法则为：a*b=ab-1，则2*3=____．

全固态锂硫电池能量密度高、成本低，其工作原理如图所示，其中电极a常用掺有石墨烯的S₈材料，电池反应为：16Li+xS₈=8Li₂S_x（2≤x≤8）．下列说法错误的是（　　）

    Hi，I am Susan. I am from the USA. But now I'm studying in China. I'm going to do many things during(在……期间) the winter holiday. First，I'm going to finish my homework. Then I'm going to take a trip. I'm going to go to Beijing. It is the capital(首都) of China. It will be snowy in Beijing. There will be snow everywhere. So I'm going to make a snowman. My parents will come to China and go with me. We are going to fly to Beijing. We are going to have a nice trip.