Which invention helped people write big numbers and calculate more easily?选项有两个：A.the 1-9system B.the zero 答案是B我想选A,

think of an invention that could help people in need 为什么用to tell you the truth而不用telling you the truth说出答案并说明理由！1.He made a great invention again,_______of great help to our daily life.a.which i think b.l think which is c.i think it d.which i think is2.was it on 英语连词成句：future,life,people,my,the,a,invention,live,help,will,in,beter(.) WHICH OF THESE DO YOUTHINK IS THESECONDMOST USEFUL INVENTION什么意思 The computer,___help we human beings have stepped into the information age,is regarded as an接上：important invention in the 20th century.A.which B.whose C.with its D.with whose请问这个句子该怎么分析?我选A怎么不行?with whose help the invention invention是什么意思? 【英语】the invention ( ) took her 2 years will do well to the world.the invention ( ) took her 2 years will do well to the world.A.which B./ C.on which D.it我知道选A The invention ______ she spent two years will do good to the world.A.which B.that C.on which D.when选什么啊?讲一讲,谢谢! the invention on which she spent two years will do good to the world.为什么要用on which?如果改成the invention which took her two years will do good to the world.which是引导什么从句?the place which you visited is where i use to live fo 英语翻译Description:FIELD AND BACKGROUND OF THE INVENTION This invention relates in general to the construction of conveyors and,in particular,to a new and useful scraper chain conveyor assembly,particularly with a single chain,which includes tro 高一英语从句的选择题_______is the most useful invention?A.Do you think which of these B.Which of these do you thinkC.Which of these you think D.You think which of these求解释! With the help of his friends,he changed a lot.Maybe that's the【 】 of friendship.A.station B.energy C.decision D.invention 请帮忙填空：Which of these do you think is ---useful invention?A；the more B;the second more C;most D;the second most 英语翻译Imagination is not only the uniquely human capacity to envision that which is not,and therefore the fount of all invention and innovation it is not alwasy easy for the public to see what use a New invention can be of to human life宾语为什么不选which I know nothing about the latest invention except ____ I read in the newspaper.A.what B.that C.which D.it为什么选A不选B? Which invention helped people write big numbers and calculate more easily?选项有两个：A.the 1-9system B.the zero 答案是B我想选A,