2. old-fashioned 是由形容词 old 和动词的过去分词 fashioned 组合而成,构成一个新的形容词。 问题分析: 1. 问题需要分析两个复合词的构成方式。 2. hairdresser 由 hair 和 dresser 构成, hair 是名词,dresser 是名词,两个名词组合在一起构成一个新的名词。 3. old-fashioned 由 old 和 fashioned 构成,...
ChemInform Abstract: How a Grignard Compound is Formed. The Signicant Influence of the Metal Surfaceorganic chemistry, revieworgano-magnesium compoundsChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ...
▲ compound [ˈkɒmpaʊnd] a. formed of two or more parts 复合的;混合的 endorsement [ɪnˈdɔ:smənt] n. an indication of commendation or approval 支持;认可;背书 passbook [ˈpa:sbʊk] n. a book in...
and are attached to the central morpheme. The central morpheme in a word is often a free morpheme and is called the root.The peripheral morphemes that are attached to the root are always bound morphemes and are called affixes.When a root morpheme is combined with an affix,it forms a stem...
How can pentane-2-one be converted to the following compound? Explain what is a fossil fuel and its formation? How could you prepare pentanal from the given starting material? CH3CH2CH2CH2CO2H How would you prepare the following diol below?
How is an ionic compound formed? Sodium and chlorine respond together to generate a substance that is familiar to nearly everybody in the globe that is sodium chloride, or table salt, or common salt. 2Na(s) + Cl2(g) \rightarrow 2NaCl(s) Explain the characteristics of table salt and ho...
Polyester is derived from a compound called ethylene, which is a constituent part of petroleum. This ethylene is reacted with dimethyl terephthalate at a high temperature, which produces a monomer alcohol. This monomer is then combined with terephthalic acid to produce the polymer known as polyester...
The same is true with smaller and smaller pieces. HowStuffWorks If you want to see a hologram, you don't have to look much farther than your wallet. There are holograms on most driver's licenses, ID cards and credit cards. If you're not old enough to drive or use credit,...
The Lewis structure of N3- (azide ion) is composed of three nitrogen atoms (N). There are 2 double bonds between each nitrogen atom (N). There are two lone electrons on each of the two outer nitrogen atoms. The overall external appearance of the molecule shows a -1 form of charge. ...
of compound interest, we assume kids who know how can write, can probably write business style emails. For years now companies have complained about the poor skills students have when leaving school, and we’ve assumed the way forward is to ensure more people study at university and for ...