题目

Learning a second language     Nowadays, more and more people are learning a second language. So why should we invest time in learning a second language? Is it worth it? What are the benefits of learning a second language? Let us see. 36       If your work involves regular contact with speakers of foreign languages, being able to talk to them in their own languages will help you to communicate with them better. It may also help you to make sales and to negotiate and secure contracts. Knowledge of foreign languages may also increase your chance of finding a new job, getting a pr亚马孙热带雨林被称为“地球之肺”是因为 ( )A. 能够吸纳和滞蓄大量降水B. 深刻影响着地球大气中的碳氧平衡C. 促进全球水循环，调节全球水平衡D. 雨林是生产力最高的生物群落