皮皮学,免费搜题
登录
搜题
【简答题】
When Babbage was working at Cambridge, a new idea occurred to him. He wanted to construct a calculating machine to work out the solutions(解法)to maths problems not only with correctness but also with a speed beyond the power of any human mind. His machine could solve problems involving(涉及)long rows of figures in one continuous operation(运算). In 1822 Babbage exhibited his invention and won a prize from the government. After that, he immediately started to work on a larger machine designed to solve more difficult problems. Although he received some money left by his father, the money was not enough to support his design. He wrote to the government about his plan and was given £2500 to start with, a sum worth much more in those days than it is now. Babbage continued his work in London for four years. Then his health broke down, and he had to take a long holiday abroad. When he returned to London in 1828, he was at the end of his resources. Many bills remained unpaid. His chief assistant and co-workers quarreled with him and left with many expensive tools. For one year no work was done. During this period, Babbage, whose mind was always active, suddenly thought of a completely new idea for the machine. He rushed to meet the government officials to explain his new idea. But this time, they were unwilling to help him. For eight years, they refused to say whether they wanted the machine or not, and their final answer was “No.” From 1828 to 1839, Babbage held the position of professor at Cambridge very successfully. But his greatest work was the unfinished calculating machine which stood covered in dust in his house. It was the beginning of the modern computer. 60.The machine Babbage designed would solve difficult maths problems _________. A.in one operation with few mistakes B.in more than one operation without any mistakes C.in more than one operation with slight mistakes D.in one operation without any mistakes 61.Babbage failed to continue his research work in 1828 mainly because _______. A.he was in poor health                B.he almost ran out of money C.his co-workers argued with him         D.he spent all his money on his bills 62.Babage explained his new idea to the government officials, expecting that _________. A.they would agree to his plan             B.they would pay for his new idea C.they would support him with money    D.they would exhibit his new design 63.From the passage, we can infer that __________. A.Babbage failed to be a famous scientist at Cambridge B.Babbage always had new ideas but gave them up easily C.Babbage always needed support from the government officials D.Babbage was the first designer of the modern computer
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】理想流体与实际流体的主要区别在于( )
A.
是否考虑惯性
B.
是否考虑粘性
C.
是否考虑易流动性
D.
是否考虑重力特性
【单选题】儿童言语的准备在( )岁。
A.
0—1岁
B.
0—1.5岁
C.
0—2岁
D.
0—3岁
【单选题】如果要求一个线性表既能较快地查找,又能动态适应变化要求,可以采用()查找方法。
A.
散列
B.
折半
C.
分块
D.
顺序
【单选题】人饿了会吃东西,一旦摄入碳水化合物、脂肪、蛋白质等能量营养素,就能消除饥饿感,这种缺乏能量营养素的饥饿是显性饥饿;然而,人体健康还需铁、锌等16种矿物元素及维生素A.、维生素E等13种维生素,如果缺乏这些微量营养素,则会造成隐性饥饿。显然,显性饥饿只要“吃饱”就能解决,而隐性饥饿只有“吃好”才能应对。 根据以上陈述,可以得出以下哪项() A.既要“吃饱”又要“吃好”,如此就能保证人体的健康
B.
消除显性饥饿对人更重要,只有“吃饱”才能“吃好”
C.
隐性饥饿并不同于显性饥饿,“吃不好”不等于“吃不饱”
D.
隐性饥饿对人体健康的危害比显性饥饿更大、更隐蔽
【单选题】以下哪种元素是微量矿物质( )
A.
B.
C.
D.
【单选题】在PowerPoint2010中,下列()操作不能启动幻灯片的放映。
A.
“视图”选项卡中的“普通”视图
B.
按【F5】键
C.
“幻灯片放映”选项卡中的“从头开始”按钮
D.
单击PowerPoint2010窗口底部的“幻灯片放映”按钮
【单选题】儿童言语的准备是在( )
A.
0~1岁
B.
0~1.5岁
C.
0~2岁
D.
0~3岁
【判断题】羧基丁腈胶乳的成膜性比丁腈胶乳高。
A.
正确
B.
错误
【单选题】理想流体与实际流体的主要区别在于:理想流体 。
A.
忽略粘滞性
B.
忽略流动性
C.
忽略重力
D.
忽略惯性
【单选题】儿童言语的准备是在()岁。
A.
0—1岁
B.
0—1.5岁
C.
0—2岁
D.
0—3岁
相关题目: