题目

Where did the woman get a copy of the novel?A. At a bookstore. B. At the man’s home. C. At the school library. 答案：【答案】C【解析】此题为听力题，解析略。18．式子（x-3）0+$\sqrt{x}$有意义，则x的取值范围是（　　）A．x≠3B．x≥0C．x≠3或x≥0D．x≠3且x≥0