题目

 (山东省济南外国语学校2010届高三上学期质量检测) D        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. Therefore, they invest（投资）in other businesses where they can increas下列关于氢氧化钠的描述中错误的是（      ）    A.易溶于水，溶解时放出大量的热      B.对皮肤有强烈的腐蚀作用 C.其水溶液能使石蕊试液变红           D.可用于造纸、制肥皂等