19.These tools are useless now,_____ 反问部分是什么

19.These tools are useless now,_____ 反问部分是什么 Are these your tools?的同义句 How are u these days? These tools are useless now,_____ A.are they B.aren’t they C.is it D.isn’t it 英语翻译What makes a person a scientist?Does he have ways or tools of learning that are different from those of others?The answer is no.It is not the tools a scientist uses but how he uses these tools that makes him a scientist.You will probabl 在线英语考试题1,What makes a person a scientist?Does he have ways or tools of learning that are different from those of others?The answer is no.It is not the tools a scientist uses but how he uses these tools that makes him a scientist.You w Are these 英语翻译The materials from which cutting tools are made are all characteristically hard and strong.There is a wide rangeof tool materials available for machining operations,and the general classification and use of these materials are ofinterest 英语翻译Bio-orthogonal chemical reactions between two exogenousmoieties in living beings are sought after tools that havepowerful applications in chemical biology,molecular imaging,and medicine.[1–4] The exquisite selectivity of these reactions 英语翻译The factors that are considered in analyzing technical solutions and the tools used to obtain technical solutions have changed forconstruction engineers over the past 30 years.This paper discusses these changes and their impacts.It then o u are Are these your trousers?Yes,these are, these are his shoes.( )are these ()? Are these your Are these your pencils? These bags are heavy. Are these pens ___? Are these shoes?