某男性患者,25岁,因“无痛性双侧锁骨上区、颈部多枚淋巴结肿大8个月”来诊。无任何症状。实验室检查:ESR 55 mm/h;血常规、肝功能、肾功能无异常。全身CT:纵隔淋巴结肿大、融合,纵隔横径超过胸廓横径的1/3。
其Ann Arbor分期为
A:Ⅰa期 B:Ⅰb期 C:Ⅱa期 D:Ⅱb期 E:Ⅲ期
以下关于人工神经网络(ANN)的描述错误的是()。
A:神经网络对训练数据中的噪声非常鲁棒 B:可以处理冗余特征 C:训练ANN是一个非常耗时的过程 D:至少含有一个隐藏层的多层神经网络
以下关于专家系统(ES)和人工神经元网络(ANN)的说法正确的是()。
A:因为ANN深人到人脑细胞,在人的知识的获取方面也比ES更深人 B:ANN的实现首先要获得知识和表示知识 C:ES的实现首先要获得知识和表示知识 D:ES和ANN的工作原理基本上是一致的
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.
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 students’ union, 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 (癌症). 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 stray 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 he 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 programmers, helping them make sense of the world.
How did Ann help the child get the operation he needed()
A:Ann persuaded the boy to speak on TV. B:Ann paid for the operation herself. C:Ann’ s boss agreed to raise money. D:Ann’ s news report moved some doctors.
Ann prefers hiking ______ the cinem
A:A. to going to than going to than to go to to go to
Pat: Will you go to the meeting
Ann: ______
Pat: When is Mary coming
Ann: ____________
Ann prefers hiking ______ the cinema.
A:to going to B:than going to C:than to go to D:to go to
Pat: Will you go to the meeting
Ann: ______