题干

下列条件中,能使直线m⊥平面α的是(   )

A:m⊥b,m⊥c,b⊂α,c⊂α

B:m⊥b,b∥α

C:m∩b=A,b⊥α

D:m∥b,b⊥α

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答案(点此获取答案解析)

D

同类题1

阅读下文,回答问题

我的麦子熟了

    14岁的高占喜,青海农家子弟,因为湖南卫视的《变形计》,他和城市的一个叫魏

    程的富家少年互换了7天人生。节目打出了议题:7天之后,高占喜愿意回到农村吗?

    第一天,占喜在机场被新爸新妈接进了豪华的宝马车,他害羞地靠在真皮座椅上面,不说话,认真地看着窗外闪过的高楼大厦,忽然,他泪水盈眶。

    这个以前在山沟里疯跑,活泼开朗的孩子,曾经在作文里写道:我想考上大学,在城里生活。可是他知道,他更可能中途辍学,流浪在城市某条喧嚣的马路上。这次机缘巧合,他提前进入了城市,小小的心里波澜起伏,何况现实的城市,比那个瑰丽的梦,仿佛更精彩。

    占喜住进了一栋豪华如天堂的复式公寓,拥有一间无比舒适的大卧室。面对丰盛的晚餐,他无所适从,紧张得5次掉筷子。接着,新爸新妈一次给了他200元的零花钱。从前,他一个月只有1元的零花钱。

    在气派的理发店里,占喜看到镜子里的自己,又一次泪水盈眶。

    不久,他迅速适应了这种新生活。

    白天,他靠在松软宽大的沙发上,茶几上是他之前从未见过的零食,面前是尺寸巨大的液晶电视。他自在地享受这一切,除了脸颊上两抹褪不去的高原红,就像是在这里长大的。

    此时,观众们忧心忡忡——这个孩子会丧失本性,沉迷于吃喝玩乐吗?

    某天,占喜被安排去卖报。归途中,占喜变得少言寡语。他看到城里人行色匆匆,在马路之间穿梭,犹如他在田间穿梭,也看见天桥下的乞丐,衣衫褴褛地等待施舍……那天,他对记者说,城里人也有穷人,生活也不容易。记者问,那你同情他们吗?占喜说,不,每个人都有一双手,幸福靠自己。

    说话时,他分明又是那个崇尚奋斗、一直努力的高原孩子。

    当晚短信预测,大多数观众仍然觉得占喜不愿回乡。然而,谜底提前揭晓——当占喜得知父亲不慎扭伤脚的消息时,他立刻要求赶回家乡。

    “为什么急着要走?父亲的脚伤不是大事,难得来一次城里。”记者问。

    占喜只说了一句:我的麦子熟了。

    父亲很早双眼失明,哥哥在外打工,弟弟还年幼,14岁的占喜已经成为家里的主要劳力。他难以不被城市吸引,这无可厚非,但同时,他也眷恋自己贫穷的家、艰辛的父母、几亩薄田和已经成熟的麦子。

    城市是他的梦,贫穷的家,却是他牵肠挂肚的现实世界。

    回到农村后,占喜仍然五点半钟去上学,啃小半个馍馍当午餐,学习之余割麦挑水,补丁长裤配布鞋,刻苦读书不改初衷:只有不断学习,才能真正走出大山,改变命运。

    占喜见识了前所未见的繁华都市,享用过从未经历的物质生活,却始终未曾忘记自己是个印着高原红的孩子,未曾忘记担当家的责任——“我的麦子熟了”,当《浮士德》的俗世诱惑变相重演,这是一句最朴实的箴言。

同类题2

阅读下面短文,掌握其大意,从短文后各题所给的四个选项A、B、C、D中,选出可以填入空白处的最佳选项。

      He met her at a party. She was outstanding; many guys were after her, but 1 paid any attention to him. After the party, he invited her for coffee. She was surprised. So as not to appear rude, she went 2.

      As they sat in a nice coffee shop, he was too nervous3say anything and she felt uncomfortable. 4, he asked the waiter, "Could you please give me some salt? I'd like to put it in my coffee."

     They stared at him. He turned red, but when the 5 came, he put it in his coffee and drank. Curious, she asked, "6 put salt in the coffee?" He explained, "When I was a little 7, I lived near the sea. I liked playing on the seaside ... I could feel its taste salty, like salty coffee. Now every time I drink it, I 8my childhood and my hometown. I miss it and my parents, 9are still there."

      She was deeply 10. That was the start to their love story.So they married and lived happily together.11 forty years, he passed away and left her a letter which said:My dearest, please forgive(原谅) my life-long 12. Remember the first time we dated? I was so nervous I asked for salt 13sugar. It was hard for me to ask for a change, so I just went ahead. Sweetheart, I don't exactly like salty 14. But as it mattered so much to you, I've learnt to enjoy it. If I could live a 15 time, I hope we can be together again, even if it means that I have to drink salty coffee for the rest of my life.