解答 答案：trade． 根据空格后面的是名词friedship，并列连词and连接的是并列的部分，所以空格处需要用名词来填空，又根据"The conference has developed _____and friendship between China and Russia．"以及首字母提示t，所以这句话的意思是"这次会议促进了中俄两国的贸易和友谊．"综上所述，故填trade．
8．There are many useful inventions in the world． Have you ever wished to have an umbrella that makes your hands free？Alan Kaufman has thought up the"Nubrella"，which means"new"+"umbrella"．It is the first truly hands-free umbrella in the world．The inventor says that it stops rain，wind and snow and can keep your head，face and hair dry． "I never planned to invent a product．I just noticed a problem and thought up a solution，"said the inventor．The idea for the invention began on one rainy day．Mr．Kaufman was standing in one of his stores．He began to look at people's umbrellas．He found that they had to try very hard to keep their umbrellas in the right place．At that moment an idea came into his mind．He ran to his desk and drew a picture．In this way，the Nubrella was born． One cool feature of the Nubrella is that you don't hold it like a usual umbrella，you wear it．The shoulder straps（肩带） of the Nubrella allow people to be fully hands-free，so when walking in the rain with the Nubrella，you are able to use your cell phone or drink a hot cup of coffee．Also，the Nubrella will never be inverted（颠倒） in the wind．The new umbrella is far safer than traditional ones，because it has no sharp points． 74．"Nubrella"is a kind ofB umbrella． A．usual B．hands-free C．traditional D．paper 75．How can you use the"Nubrella"？A A．You can wear the shoulder straps of the Nubrella． B．You can put the Nubrella on your head． C．You can use your hands to control it． D．You can put it on your bike． 76．Which of the following is NOT right？D A．"Nubrella"means"new"+"umbrella"． B．The idea of the new umbrella came from the rainy day． C．When you are walking in the rain，you'd better take the Nubrella． D．If you go out with the Nubrella in the rain，you'd better drink a hot cup of coffee． 77．It can be learned from the passage thatD． A．Alan Kaufman often uses umbrellas in everyday life B．the new kind of umbrella was invented by an umbrella store owner C．the inventor thought for a long time before inventing the Nubrella D．you can do other things with your hands when using the Nubrella 78．In writing this passage，the writer mainly intends（意图） toC． A．introduce this new kind of umbrella to people who are selling umbrellas B．tell the readers about a great inventor named Alan Kaufman C．tell the readers about a new invention that is very useful D．tell the readers that the inventor didn't want to invent anything．
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