题目

秦汉时期长江中下游平原的人地关系是( ) A．基本协调        B．开始出现明显不协调 C．环境污染严重   D．生态破坏 答案：A--May I turn on the TV, Mum? I finish my homework. ---_________. A．Yes, please.                            B．No, you’d better not. C．No, you needn’t.                       D．Yes, you must.