第34题: [填空题]Cleaner Message 1.It’s very good on aluminum and (9)______, but not very good with (10)______. 2.It works well on enamel, it’s perfect for floor tiles. But it’s not good for (11)______floors; however, (12)______is fine. 参考答案:silver 答案解析:[精析] 此题是对该清洁剂不适用于哪种金属的考查,听音的时候要注意把握金属的名称。根据听力原文,这里填:silver。