高中英语Unit3Inventorsandinventions单元小结课件新人教版

With the expectation of distinguishing their own importance, some people leave the beaten track and file strange products with us now and then, for example, lantern that can be attached on your forehead, cubic walnuts, refrigerator made of straw and glue, perfume that nobody can bear to s分内容来源于网络， 如有侵权请及时联系我们删除，谢谢配合！
Once, a man made a triangle helicopter out of stainless wires and string. He called us up and merrily claimed it was stable and convenient to use, and never out of order. I asked him to hang on, but this innocent man just rang off and set out to fly from his courtyard. I dialed his number in the directory trying to ring him back, but never got through.
Strange Patent Applications I set about working in the current Patent Office after resigning from the court personnel. Competent and dynamic, I never feel passive while diving into the identifications of whether applications are valid and practical according to the new version of the criteria.