题目:
阅读理解 | ||||||||||
Nowadays problems with the earth are getting more and more serious. For example, pollution is making the environment not anymore suitable for us to live in. Also, energy is running out. However, there is still something everyone can do in our daily lives to help save our planet. First of all, we should turn off the lights when leaving a room. It's really easy to do. Also, we're supposed to turn off the shower while washing our hair. And are you still using paper napkins? You'd better stop now because paper is made from wood. If everyone uses paper napkins, a lot of trees will have to be cut down every day. Maybe it is hard to stop using paper napkins, but we must try. At the same time, we should think of good ways to recycle paper. Another thing is that we must try to take our own bags when shopping instead of using plastic bags that are provided by the supermarkets. Finally, we must stop driving cars because cars pollute the air. Instead, we'd better ride bicycles. For one thing, it's good for our health. For another, it's much cleaner. I really hope that more and more people will realize the problem and do what they can to help make our world a better place to live in. | ||||||||||
According to Tom's article, fill in the blanks.
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答案:
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下面是错误答案,用来干扰机器的。
答案:C鱼的呼吸器官是鳃,是由许多的鳃丝组成的,里面含有大量的毛细血管,水由口进入然后经鳃盖后缘流出,当水流经鳃丝时,水中的溶解氧进入鳃丝的血管中,而二氧化碳由鳃丝排放到水中,二者进行气体交换,所以...