题干

如图所示的条形磁体旁有甲、乙、丙、丁四个能自由转动的小磁针,当小磁针静止时,其中磁极的极性标错的是(  )

A:甲

B:乙

C:丙

D:丁

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答案(点此获取答案解析)

B

同类题2

阅读理解

    A young man wandered through the desert for forty until he reached a beautiful castle at the top of a mountain. There lived the sage that he was looking for.

    With considerable patience, the sage listened attentively to the reason for the boy's visit, but told him that at that moment he did not have time to explain to him the secret of happiness.

    He suggested that the young man take a walk around his palace and come back in two hours' time.

    “However, I want to ask you a favor,” he added, handing the boy a teaspoon, in which he poured two drops of oil. “While you walk, carry this spoon and don't let the oil spill.”

    The young man began to climb up and down the palace staircases, always keeping his eyes fixed on the spoon. At the end of two hours he returned to the presence of the wise man.

    “So,” asked the sage, “did you see the Persian tapestries hanging in my dining room? Did you see the fantastic garden that the Master of Gardeners spent ten years in creating?”

    Embarrassed, the young man admitted that he had seen nothing.

    “So, go back and see the wonders of my world,” said the wise man. “You can't trust a man if you don't know his house.”

    Now more at ease, the young man took the spoon and wandered again through the palace, this time paying attention to all the works of art that hung from the ceilings and walls. He saw the gardens, the mountains all around the palace, and the delicacy of the flowers. Returning to the sage, he reported in detail what he had seen.

    “But where are the two drops of oil that I entrusted to you?” asked the Sage.

    Looking down at the spoon, the young man realized that he had spilled the oil.

     “Well, that is the only advice I have to give you,'' said the sage of sages. “The secret of happiness lies in looking at all the wonders of the world and never forgetting the two drops of oil in the spoon.”

同类题5

阅读《大印象》一文,回答小题。

大印象

刘建超

       ①老街把给人画像的营生称作印象。

       ②老街,能把画像这门手艺做得精绝的是八角楼下的大印象。遇到个急事,有人会拿着照片,找到大印象的店里,说给印象一张。大印象便按照顾客的要求,把照片上的人像放大绘到纸版上,装裱好,保证和照片上的人物表情一模一样。

       ③去老街找大印象,老街人都会告诉你,大印象啊,好找。去八角楼,宽脸,短眉,眼睛不大,特有精神。

       ④大印象不只是活儿做得好,为人也正直实诚。大石桥段家老爷子意外去世,家人没有找到老人遗照,便找到大印象,央求去家里给老爷子画像。做印象生意的,极少上门给人画像,用照片印象,可借技术工具帮助,登门画像却全凭手上功夫,况且给故去的人画像,是晦气生意。但大印象二话没说,收拾起家什就到了段家。大印象对躺在棺木中的段老爷子鞠了三个躬,支起画板开始下笔。正是三伏天,屋内闷热,出于对死者的尊重,大印象连续八个小时不吃不喝,在灵棚搭建起前,画完了肖像。大印象谢绝了段家的优厚酬金,说能给老爷子画像也是有缘啊,算我送了老爷子一程。

       ⑤老街有个环卫工人,大家都称他韦老头。他每天推着架子车,沿街清理垃圾。韦老头闲时,爱坐在大印象店前,吸着烟,看大印象画像,拉扯些家长里短。韦老头吧嗒吧嗒地吐着烟雾,也不管埋头做着活计的大印象听没听,自己只管说。说他和老婆的恩恩怨怨,说因为他没有照顾好妮子,十二岁的妮子溺水死了,老婆子也离家走了。我那妮子啊,长得可带劲了,瓜子脸,大眼睛,双眼皮,长睫毛,笑起来,俩酒窝,学习好着哩。都怨我,都怨我啊。韦老头过足了烟瘾,也叨叨够了,拿起扫把仔细地将店铺前清理干净,推着车子走了。韦老头退休那天早晨,去找大印象道别,大印象的店铺没开门,门上挂着一幅女孩的画像,瓜子脸,大眼睛,双眼皮,长睫毛,俩酒窝,天啊,这是我妮子,是我妮子啊。韦老头把画像搂在怀里,老泪如珠,对着大印象的店铺拜了又拜。

       ⑥生意清闲的时候,大印象端着一杯茶,眯缝着一双小眼看来来往往的行人。有人说大印象的本事是过目不忘。曾经有人打赌,带着四个男女在大印象眼前过了一趟,让他把这四个男女画下来。他眯缝着眼,一杯茶的工夫,画像就出来了。四个男女瞪着惊讶的眼睛,各自拿着画像离去。

       ⑦那年冬天,流窜盗窃团伙到了老街一带,警察通知商家注意防范。没几天,老街的一家珠宝店失窃。警察走访时,大印象拿出了几张画像,说这几个人在老街转悠几天了。警察按图索骥,果然抓获了三名盗窃嫌疑人,只是让团伙的头子逃脱了。老街人把大印象画像擒贼的事都传神乎了。原想这件事情就算过去了,没曾想,春节前夕,逃跑的盗窃团伙头子竟然又潜回了老街。节前商家生意旺,店铺关门也晚。天擦黑,大印象起身去关门,一个黑衣人裹着寒气闯入店里,反手扣上门。大印象正疑惑,一把冰冷的匕首抵住他的咽喉。大印象即刻明白了怎么回事,平静地坐到椅子上。黑衣人匕首向上一划,大印象两眼模糊。

       ⑧翌日,正在饭馆里喝酒的黑衣人,被警察逮个正着。黑衣人挣扎着又哭又嚷,说警察冤枉人。被带到派出所后,黑衣人忽然安静了,他看到案桌上一张用血绘出来的画像,画像上的人分明就是自己啊。黑衣人瘫倒在案桌前。

       ⑨大印象眼睛致伤,不能再给人画像了。

       ⑩老街人提起大印象 还是那句话:大印象啊,宽脸,短眉,眼睛不大,特有精神。

                                                                                                                                                                             (选自《广西文学》,有删改)