(2)简述改善城市内核水质的主要措施。
正确答案:(2)打捞漂浮垃圾;清除河床淤泥,引水冲淤;沿岸绿化;禁止工业废水和生活污水直接排放。

上一篇 (C)“Get your hands off me, I have been stolen,” the laptop, a portable computer, shouted.
下一篇 What is the main idea of the passage? A. Multitasking has become a way of life. B. M