题目

阅读短文，按照题目要求用英语回答问题。This past week I was assigned to go without technology for six hours for study. I assumed that it was going to be impossible. Nowadays, people have become so dependent on technology. We are so addicted to it that we will panic when we can’t remember where we have put our phone.I began my day at 9 am, turning off my phone. I grabbed my wrist watch and some textbooks and set off for my day. I went to a coffee shop for breakfast and as I sat down, instead of pulling out my phone, I pulled out the book I was currently reading. As I ate my 下列符合中，既能表示一个原子，又能表示一种元素，还能表示一种物质的是A．C60B．2A1C．2H2D．Cu