题目

Dear Linda,Do you want to know about my family? Well, I have a big family. My grandfather is Li Haitao. He's 60 years old. My grandmother is Huang Yingying. She's 59 years old. I have two aunts and an uncle. They are Li Li, Li Jia and Li Ming. Li Li is in America. She has a daughter. Her name is Rose. She's a three-year-old girl. They often come to Beijing to see us. Li Ming has a son named Li Xiaoping. Li Xiaoping is in England. He is a teacher. My parents are teachers, too. They work in No.1 Middle School in Beijing. I'm in No.1 Middle School, too. Oh, my father is my English teacher.Yours,L非可更新资源的“非可更新”是指 [　　] A．数量有限 B．永远不可更新 C．更新时间远远长于人类历史 D．更新速度慢于人类对它的消耗速度