题目

E The earth is getting warmer. The planet is suffering. But what can you do about it? Reduce the amount of waste you generate. Use cleaner energy sources and go greener today, starting with these steps: 1. Get a reusable water bottle Americans buy about 25 billion single-serving plastic water bottles each year. That's an average of 83 bottles per person per year. Plastic bottles take plenty of resources to produce, including fuel for transportation and petroleum to make the plastic. Even recycling bottles uses energy. 2. Eat less meat You don't need to become a vegetarian to help save the plan射线和直线相比（　　）A．射线比直线长B．直线比射线长C．无法比较长度