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 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 i was told that some biks are made of plastics instead of steel plastics是什么意思 plastics works Some hard plastics can be ________ metals in manufacturing machine parts.A) substituted for 敢问B 为什么不可以 能不能举例take one's place 主动 被动的例子B) taken the place of 还有D 有替代的意思吗 叩 hard plastics是什么意思?是指硬质塑料吗,包括哪些种?另外能提供相关的文字介绍吗? help yourself to some tea after the hard work_____ yourself to some tea after the hard workA.Enjoy B.Drink C.Help答案选的是C,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 take some hard -boiled eggs Tom will be successful______,if he works hard.A someday B some day C some days选哪个?为什么? Doctors should work hard to save sick and wounded.A a B some C the D / 1.The traditional view that men are superior ______ women still exists in some remote areas.A.to B.over C.for D.than2.______ plastics,the washing machine is light in weight.A.Made of B.Making of C.Being made of D.Having made of3.The people on the thi plastics machinery什么意思 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 Plastics can not____steel completeLy A.instead B.instead of C.take the place of D.take place Coal and oil are most_materials for the manufacturing of plastics.A artificial B building C raw Dsolid 选哪个?为什么 Some words are hard to _______ because they have many different uses.A.spell B.pronounce C.define D.mean