Complete the notes below using NO MORE THAN TWO WORDS from the passage.Write yo

游客2024-01-08  6

问题 Complete the notes below using NO MORE THAN TWO WORDS from the passage.
Write your answers in boxes 7-13 on your answer sheet.
Education:
Having accumulated a great fortune in his business, Nobel’s father determined to give his son the best education and sent him abroad to be trained in【R1】______.
During Nobel’s study in Paris, he worked in a private laboratory, where he came in contact with a young engineer【R2】______and his invention nitroglycerine, a more powerful explosive than【R3】______.
Benefits in construction works:
Nobel became really interested in this new explosive and experimented on it. But nitroglycerine was too dangerous and was banned for experiments within the city of【R4】______. So Nobel had to move his experiments to a lake. To make nitroglycerine easily usable, Nobel invented dynamite along with【R5】______while in the meantime【R6】______became popular, all of which dramatically lowered the【R7】______of construction works. [br] 【R6】

选项

答案 pneumatic drill

解析
转载请注明原文地址:https://tihaiku.com/zcyy/3343856.html
最新回复(0)