题目

After 20 years of living and reading together, we have gathered what some might call a large library. One problem：We don't _______ have a library to put the books in. It was time to take _________.I started in the office, where the literary remains of five university degrees _______ dust. Why did we _______ have textbooks from 25 years ago? I worked my way through the shelves _______ and slipped them into the donation box. Next came Second-Hand Dog, _______ when we adopted our first shelter dog nineteen years ago. I couldn’t _______ flipping （快速翻动） through the pages, rememberin 关于多项式3x2+x﹣2，下列说法错误的是(     ) A．这是一个二次三项式     B．二次项系数是3 C．一次项系数是1      D．常数项是2