____ of plastics,the instrument is light.(make）时态填空,请写明原因

____ of plastics,the instrument is light.(make）时态填空,请写明原因 ____ plastics,the machine is light in weight 哪种塑料有最大的市场份额Which of the following plastics has the highest market shareWhich of the following plastics has the highest market share?phenolicspolyethylenepolypropylenepolystyrenepolyvinylchloride plastics are the best insulator of electricity,rubber following it closely吗意思 Plastics can not____steel completeLy A.instead B.instead of C.take the place of D.take place 英语翻译The role of plastics The unhygienic use and disposal of plastics and its effects on human health has become a matter of concern.Colored plastics are harmful as their pigment contains heavy metals that are highly toxic.Some of the harmful Coal and oil are most_materials for the manufacturing of plastics.A artificial B building C raw Dsolid 选哪个?为什么 英语翻译Cutting Other Materials:The machining of plastics,fiber-reinforced plastics,graphite,asbestos,and other hard and abrasive constructional materials mainly requires abrasionresistance.Cutting pressures and power requirements are generally l Now plastics can ___ steel in many ways of our life.a.take place b.take the place of c.instead of d.be taken place 英语翻译To better permit the passage of light,many new plastics are processed using technologies rivaling those used in the manufacture of computer chips. Examples of homogeneous materials are individual types of plastics,ceramics. In the modern world many things are made of plastics _______ wood.A.except B.beside C.instead of D.without选什么,问什么? A bag made of plastics is much more durable than_______made of paper.A.one B.that C.the one D.that one This cup is made _______(of /from)plastics. 帮我解释一下下面这段文字Carry on secondly the discard recovery make use of,reducing arboreal to the forest of chop down.Still need to strengthen the dialogue color polluting processing,use the plastics ware less. 英语翻译Most conveniently,polymers are generally subdivided in three categories,viz.,plastics,rubbers and fibers.In terms of initial elastic modulus,rubbers ranging generally between 10(6) to 10(7) dynes/cm²,represent the lower end of the sc some hard plastics can be ---------metals in manufacturing machine part.A.substituted for B.take the place of选哪个?,AB不应该在一道题里吧?taken the place of，说明原因区别 plastics是什么意思