优优班--学霸训练营 > 知识点挑题
全部资源
          排序:
          最新 浏览

          50条信息

            • 1.

              California is the third largest state in the USA but has the largest population. It also has the ______(1)________of being the most multicultural state in the USA, ______(2)_______people from all over the world. The customs and languages of the immigrants live on in their new home. This  _____(3)______ of culture is not surprising when you know the history of California.

              Cloning has two major uses. Firstly, gardeners use it all the time to produce  ______(4)_______ plants. Secondly, it is valuable for research on new plant species and for medical research on animals. Cloning plants is straightforward  ______(5)________ cloning animals is very complicated. It is a difficult task  _______(6)_______. Many attempts to clone mammals failed. But at last the determination and patience of the scientists  ______(7)________ in 1996 with a breakthrough-the cloning of Dolly the sheep.

              Nor will you receive a patent until a search has been made to find out that your product really is different from _______(8)_______. There are a large number of patent examiners, too, whose only job is to examine whether you claim is  ______(9)________ or not. If it passes all the tests, your application for a patent will be published 18 months from the date you apply. So I have filled in the form and filed my  _________(10)_____ with the Patent Office. Now it’s a matter of waiting and hoping. You’ll know if I succeed by the size of my bank balance! Best luck!

            0/40

            进入组卷