来自中商情报网的数据显示，2016年9月15日人民币对美元汇率中间价报6.6707，2016年9月16日人民币对美元汇率中间价报6.671l。不考虑其他因素，人民币汇率这种变化影响我国的传导路径是（    ）

①出口商品具有价格优势→推动我国出口贸易发展→我国外汇收入增加

②人民币的实际价值减少→人民币国际购买力下降→我国国内储蓄增加

③美元的实际价值增加→美国对外投资结构优化→我国对美投资增加

④进口商品人民币价格提升→增加企业进口成本→促使企业加快转型升级

根据理解，完成阅读

    With the help of the Internet, shopping is becoming an easy job. You don't need to go to the street, looking for things from shop to shop. You just click the mouse to choose the things you like at any time or any places you like. And in a few minutes, the shopping is over. And the next three to seven days, the thing you buy online will come to your house. 

    It sounds fun, easy and quick. But sometimes you may meet something bad from online shopping. If you are not careful enough, you may buy some fakes. They are cheap copy things. And you want to give them back. But the owner of the shop online may not keep in touch with you. If you give them Chaping, They may do something bad to you. We often read this kind of news on the newspaper. It is terrible. And if you want to be different, it is a good idea not to buy clothes online. Once you put on the coat and go out. You will find many people wear the same clothes in the street. You may feel uncomfortable. But the next example will make you mad. According to the survey of March 15^th Party this year, many kinds of Japanese food, such as Japanese Calbee and Xinxie Rice, is dangerous. After eating them, you may have a bad body.

    Hello! I'm Sophia! Let's meet these popular pig stars! They are from stories and movies.

    Hello. I have a birthmark（胎记） on my right eye. I'm not clever but happy, not rich but have many dreams. I want to visit Disneyland, and eat chicken at Christmas. I have a happy family and many good friends.

— McDull

    Happy New Year, everyone! I like to go on exciting experiences with Teddy Bear. I'm a small but lovely pig. I live in the Hundred Wood with my friends. I wish my friends happiness and health.

— Piglet

    We're Pig Brothers! We are good at building houses. We like to be called “Pig Engineers”. We help others build houses in the countryside. Have you ever read our story? In the story, we build a stone house and drive the wolf out.

— Pig Brothers

    Long time no see! I'm a pig in a Chinese story Journey to the West. I'm good at kungfu(功夫), but I don't like working. In my free time, I like eating and sleeping.

— Zhu Bajie