结果1 题目 11 What is a characteristic of all catalysts?C A They are broken down in the reaction. B They are made of protein. C. They are not changed by the reaction. D They do not change the rate of the reaction. 相关知识点: 试题来源: 解析 C 反馈 收藏
28【答案】B【解析】题干意思是:单一性的特点是什么?A:空的;B:神秘的;C:固定的。根据第一段最后一句“The answer would be amazing: it is the most mysterious thing in the universe.(答案是最神秘的事情在宇宙里。)”可知,答案选B。 反馈 收藏 ...
What are Minerals? To meet the definition of "mineral" used by most geologists, a substance must meet five requirements: naturally occurring inorganic solid definite chemical composition ordered internal structure "Naturally occurring" means that people did not make it. Steel is not a mineral because...
A . Portraits were often modified after a person's death. B . The type of frame indicated the social status of the subject. C . Portraits of ordinary people became common. D . Portraits often did not show people’s unattractive features. ...
736.According to Tu Youyou, the discovery of artemisinin was a team effort. 屠呦呦说,青蒿素的发现是团队共同努力的结果。 737.Upon hearing that she had been awarded the Nobel Prize, she said, “The honour is not j...
What is the characteristic of the Alps' terrain? A. Only high peaks. B. High peaks, deep valleys and vast glaciers. C. Only deep valleys. D. Flat plains. 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“The Alps are characterized by high peaks, deep valleys, and vast glaciers.”...
is cold and rain is pour down.It can also be very dangerous.Of course I will be very carefully on my bike.In fact, accidents are not the only problem.Once I went to a bookstore on my mother bike to buy some books and come out to find the bike missing.Now I have two strong ...
What is a halide mineral? What is a carbonate mineral? What is the most abundant element? Which mineral among the following does not have a metallic luster? a. Pyrite b. Galena c. Graphite d. Dolomite Which characteristic is used to identify minerals?
Schists largely consist of minerals with a platy or layered characteristic. The minerals that may come to mind most readily are micas (e.g. muscovite,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
Because a clause expresses an action or a state of being, a clause can often—but not always—function as an independent sentence. A sentence can have just one clause, or it can have multiple clauses. The only defining characteristic of a clause is that it must contain a related subject...