19.Some metals are better conductors of electricity than others,____ means that the former have atoms that contain more free electrons than the latterr.[A] that[B] this[C] it[D] which题 2020.It is highly desirable that a new president ____ f

19.Some metals are better conductors of electricity than others,____ means that the former have atoms that contain more free electrons than the latterr.[A] that[B] this[C] it[D] which题 2020.It is highly desirable that a new president ____ f There are various kinds of metals,each ___D___ its own properties (特性).A.has B.had C.to have 12.Some metals are better conductors of electricity than others,______ means that the former have atoms containing more free electrons than latter.A.that B.this C.which D.it 13.If the earth suddenly ______ spinning,we would all fly off it.A.had stopp There are many kinds of metals,____ its special properties.A.each having B.every having C.ea请问each和every的区别 There are 102 elements,___are metals.请解释一下为什么其他两个选项不行?A.of which B.little of which C.most of which There are various kinds of metals, each ___D___ its own properties (特性). A. has B. had C. to haveThere are various kinds of metals, each ___D___ its own properties (特性). A. has B. had C. to have D. having 为什么选D哦（我排除 30.There are 103 elements found in nature,____ are metals.A most of which B most of them C most of that D most which 选A?为什么不选B？ Some are red,some are white（ ）some areSome are red,some are white（ ）some are blue.A.but B.or C.at D.and 选哪个 some hard plastics can be ---------metals in manufacturing machine part.A.substituted for B.take the place ofC Replaced in D given way to请问每个选项的具体意思是什么,答案为什么选A 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 there are 102 elenents found in mature ,most of which are metals中文 what are the children doing?------are running,------are dancing..A,some ,others B,some,other Are there( ) men in the room?Yes,there are( )A.some,some B.any,anyC.some,anyD,any,some 为什么电离能高的非金属反应越大?原题是这样的:why are non metals with higher ionization energies more reactive?提示: Hint: how do metals and non metals react differently急用! 亲,Q41:The market for recycled commodities likealuminum and other metals remain strong despite economic changes in the recyclingindustry.[*]commodities like aluminum and other metals remain [*]commodities like those of aluminum and other metals are Which of the following properties or characteristics are inconsistent with the metals (more than one)?A good thermal conductivity B high strengthC.high electrical resistivityD.high stiffnessE.ionic bonding The predominant phase in the iron-carbon all There are various kinds of metals,each having its own properties改为状语从句.! 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