问题 填空题

(2011?江汉区)西周戎生青铜编钟是由八个大小不同的小编钟组成,其中最大编钟高度比最小编钟高度的3倍少5cm,且它们的高度相差37cm.则最大编钟的高度是  cm.

答案

58

分析:设小编钟的高是xcm,大编钟的高是ycm,根据其中最大编钟高度比最小编钟高度的3倍少5cm,且它们的高度相差37cm可列方程组求解.

解答:解:设小编钟的高是xcm,大编钟的高是ycm,

所以最大编钟的高为58cm.

选择题
单项选择题

Ann Curry is a famous news presenter of the NBC News "Today" show. When she was 15 she happened to walk into a bookstore in her hometown and began looking at the books on the shelves. The man behind the counter, Mac McCarley, asked if she’d like a job. She needed to start saving for college, so she said yes.

What particularly gives her the feeling of pride
[A] Helping people through work. [B] Reporting interesting stories.
[C] Being able to do different jobs well. [D] Paying through her college education.

Ann worked after school and during summer vacations, and the job helped pay for her first year of college. During college she would do many other jobs: She served coffee in the student union (学生会), was a hotel maid and even made maps for the US Forest Service. But selling books was one of the most satisfying jobs.
One day a woman came into the bookstore and asked Ann for books on cancer. The woman seemed anxious. Ann showed her practically everything they had and found other books they could order. The woman left the store less worried, and Ann has always remembered the pride she felt in having helped her customer.
Years later, as a television reporter in Los Angeles, Ann heard about a child who was born with problems with his fingers and his hand. His family could not afford a surgical (外科的) operation, and the boy lived in shame, hiding his hand in his pocket all the time.Ann persuaded her boss to let her do the story. After the story was broadcast, a doctor and a nurse called, offering to perform the surgical operation for free.Ann visited the boy in the recovery room after the operation. The first thing the boy did was to hold up his repaired hand and say "Thank you." What a sweet sense of satisfaction Ann Curry felt!At McCarley’s bookstore, Ann always sensed she was working for the customers, not the store. Today it’s the same. NBC News pays her, but she feels as if she works for the people who watch the programs, helping them make sense of the world.