题目

根据短文内容，将方框中的句子还原到短文空白处(方框中有一个多余选项)。Hello, my name is Jenny Brown. I'm a middle school student. It's 367-8953. This is my schoolbag. I like purple very much. What's in my schoolbag? A ruler, a pen, five books and a cup. This is my ruler. This is my cup. And what's this? Is it a cup, too? It's a red pen.A. It's a blue ruler.B. No, it's a pen.C. The color is purple.D. It's very nice.E. This is my phone number.F. It's a green schoolbag.相同质量的H2和CO完全燃烧需要氧气的质量 A．CO多，H2少B．二者一样多C．H2多，CO少D．无法确定