题目

根细胞膜上某种离子的载体蛋白的有 无，决定对离子选择吸收的种类。    （  ） 答案：正确听下面一段材料，回答第1-4题。 1. Where does the woman get the newspaper?  A. On the roadside B. From the office C. From the library 2. What is the woman busy with? A. Her moneymaking B. Her office work C. Her studies 3. How often does the woman usually go to the library? A. Every day B. Every two days C. Once a week4. What are the two speakers mainly talking about? A. The woman's recent studiesB. The woman's favorite job C. The woman's reading habits