Of all the inventions,what do you think is ________ invention in the 21st century．A.the most helpful B.more helpful C.helpful D.more and more helpful

the most useful invention of all time 是什么意思? re-invention of the THE INVENTION OF SOLITUDE怎么样 Necessity is the mother of invention. THE INVENTION OF SOLITUDE A MEMOIR怎么样 the invention 为什么是Computers are the second most useful invention of the world为什么是invention 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 英语翻译I will do my best,it all comes down to the level of interest in your invention that's what drives it forward and a deal. the invention of computer was a t______ revolution the invention is very o___ Few people think of it LA INVENCION DE LA SOLEDAD THE INVENTION OF SOLITUDE怎么样 be referred The invention of gunpower is referred to China 中松博士的发明 THE INVENTION OF DRNAKAMATS怎么样 英语翻译The Most Useful Invention of All Time?Barbara—Saturday,April 13 I am writing a paper for my English class,and I need some ideas.What do you think is themost useful invention of all time?Thanks for your thoughts.RE1:The Most Useful Inven Did Benny f_______ daisy?再问问we can change electricity into different f_______ of energyit is bad manners to f_______ the old.A__________ all of the invention are useful.protecting trees is very useful for m________ 英语翻译Invention of glassesWhat is the most important invention?It is the telephone that lets us talk to people from all over the world?It is the car that lets us travel at great speeds to meet others?An Italian write says the most important inv Of all the inventions,what do you think is ________ invention in the 21st century．A.the most helpful B.more helpful C.helpful D.more and more helpful