题干

一个路口的红绿灯,红灯的时间为30秒,黄灯的时间为5秒,绿灯的时间为40秒,当某人到达路口时看见的是红灯的概率是(  )

A:15

B:25

C:35

D:45

上一题 下一题 0.0难度 选择题 更新时间:2018-09-04 07:26:04

答案(点此获取答案解析)

B

同类题2

阅读下文,回答相关问题。

                                                                                                                                      站在山脚下的人
        27岁时,他从牧师转行去当画家,深信自己会在绘画艺术上有所成就。
  一天,他拿着自己的几幅临摹画作,去巴黎向一位知名的画家求教,希望他能指点一二。可一连去了好多次,对方都以他的作品太稚嫩,根本不具备绘画天赋为由拒绝给他指导,甚至连面都懒得见。
  无奈之下,他只好守在这位画家的院门口,希望能在他出门时拦住他。
  一天,画家果然被他等到了,“我对您的才华仰慕已久,请您务必花几分钟时间,指点一下我的作品。好吗?”说完,他便将自己的画双手奉上。
  可让他没想到的是,这位画家不但没有伸手去接画,反而以无比轻蔑的语气说道:“让我去看一个无名小卒的画,除了浪费我的时间外,没有任何意义。”
  对方的话极大地伤害了他的自尊,但他还是稳了稳情绪,然后微笑着说道:“如果把绘画艺术比作一座高山,那么现在的您无疑是站在山顶的那个人,而我则毫无疑问是站在山脚的那个,您若是朝下看我,自然觉得我渺小得如同一只蚂蚁。”
  大画家听后哈哈大笑:“既然你懂得这个道理,就应该知趣地离我远一点!”
  他点了点头:“从下一刻起,我便会离您远远的。可是,难道您就不想知道山脚下的人看山上的人是怎样的感觉吗?”
  “什么感觉?高山仰止?”大画家得意地反问。
  “不,我在山脚朝上看您,同样也觉得您渺小无比。”他淡淡地答道。
  就在那位画家惊愕不已时,他接着说道:“人是不能永远站在山顶的,无论他站得多高,始终都是要下来的;而站在山脚的人,只要肯努力,也一定有登上山顶的一天,不是吗?”
  后来的他,通过自己的努力,终于攀上了绘画艺术的最高峰。不错,他正是世界上最著名的画家之一——文森特·梵高。

同类题3

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下画一横线,并在该词下面写出修改后的词。

注意:1)每处错误及其修改均仅限一词;

2)只允许修改10处,多者(从第11处起)不计分。

    A robot used for housework was going to be tested out in a family. He looked like a tall and handsome man with smooth black hair, speak in a deep voice. Larry was going to be away from home, so he hired such a robot to accompany with his wife Claire. Claire didn't like the idea at the beginning, and she agreed to it at last. At her first sight of Tony, Claire was alarming. When Tony offered to help her dress, Claire felt embarrassed. Gradual Tony began to win Claire's trust. He helped Claire realize her dreams by making her home elegant, giving her a new haircut, changing the makeup she wears and giving her advice on her dresses. Therefore at the party all the guest who were invited were filled with admiration when they saw her house was completely transformed. At same time, Tony left a deep impression on all of them. After the test, the company was satisfied with Tony's report because she had successfully made a woman regain her confident, although he shouldn't have her fall in love with him.