题目

In cities with rent control, the city government sets the maximum rent that a landlord can charge for an apartment. Supporters of rent control argue that it protects people who are living in apartments. Their rent cannot increase; therefore, they are not in danger of losing their homes. However, the critics say that after a long time, rent control may have negative effects. Landlords know that they cannot increase their profits（赢利）. Therefore, they invest（投资）in other businesses where they can increase their profits. They do not invest in new buildings which would also be rent 语音知识。从每小题的A、B、C、D四个选项中，找出所给单词的正确读音。 (     )1. envelope A. B. C. D. (     )2. buffet A.  B. C. D. (     )3. schoolmate A.  B. C. D. (     )4. aboard A. B. C. D. (     )5. remind A.  B.  C. D.