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大多数被子植物的胚珠为倒生胚珠。( )

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  • 【名词&注释】

    被子植物(angiosperm)、气候异常(climate anomaly)、重要问题(important problem)、二氧化碳排放量、普鲁卡因(procaine)、国际地位、安替比林(antipyrine)、哥本哈根会议、积极行动(affirmative active)、实际行动(actual action)

  • [单选题]大多数被子植物的胚珠为倒生胚珠。( )

  • A. 正确
    B. 错误

  • 查看答案&解析
  • 举一反三:
  • [单选题]江公皋传 [清]蓝千秋江公讳皋,字在湄,号磊斋,世居桐城之龙眠山下。性敏慧,弱冠举于乡。未几,成进士,除瑞昌令。
  • A. 迫即走楚壤藉寇而。”因勒乡堡长宣谕利害,督丁壮材勇者巡察,时刺取其渠魁击杀之,盗遂息。
    B. 未几,迁巩昌守。时大军入蜀,道巩昌,军兴旁午,民疲困,卒益骄悍,或窃出渔夺,无敢呵者。公行部出郊,见数骑驰突过车,斥止验问得实,立缚送大帅斩以徇,由是兵卫肃然莫敢犯。
    C. 越四岁,移刺柳州。柳僻南服,俗犷悍。时新收粤西,兵留镇柳州,军中多掠夺妇女,哭泣思归。公白大府,缴营帅籍所掠赴郡讯之,恳归者量远近给资遣还,凡数百人。明年,柳帅卒,饷不继,士擐甲哗军门,公遽出,与期匝月给,士卒信公,稍解去。即驰书告台省趣发饷。饷应期至,军乃戢。粤西山峻削,柳尤连险,万石离立,斤斧所不厦,颇多巨木。时上方修太和殿,使者采木且及柳,柳人大恐。亡何,使者至,公即呼柳民问所产巨木地,令前导,公骑偕使者往视木。行数里,至绝巘下,山石嶙峋,木森森挺出,下临崖谷,马不能前。公解鞍,踞地稍憩,徒步邀使者登,使者有难色。公日:“上命也,木苟可出,守臣当先以身殉。”遂短衣持筇,扶两小吏先登,使者强随之,半崖路绝,无置足所。公仰视木顾使者日:“何如?”使者咋舌,大呼亟返,曰:“是不可取。”公曰:“木具在是,赖使者为上言不可取状。”使者遂还,奏免,柳民欢呼戴上恩德。
    D. 公享年八十有一,卒康熙乙未。公性廉明,故所在有声绩。为人孝友恬淡,通达时务,习吏事。始终洁白一节,贤达皆叹仰之。 (有删节)
    E. [注]①逋赋:拖欠的赋税 ②渠魁:首领 ③军兴旁午:军队征敛繁多
    F. 对下列句子中划线词语的解释,不正确的一项是
    G. 檄营帅籍所掠赴郡讯之 籍:登记
    H. 即驰书告台省趣发饷 趣:通“趋”,前往
    I. 使者采木且及柳 且:将要
    J. 公仰视木顾使者日 顾:回头看

  • [单选题]我国稻属植物有四种,其中( )为栽培种。
  • A. Oryza sativa
    B. Oryza rufipogon
    C. Oryza officinalis
    D. Oryza granulata

  • [单选题]葫芦藓的孢子萌发以后形成原叶体。( )
  • A. 正确
    B. 错误

  • [单选题]Section B
  • Directions: Read the following four passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D.Choose the one that fits best according to the information given in the passage you have just read. (A. Even at school there had been an unhealthy competition between George and Richard. “I’ll be the first millionaire in Coleford!” Richard used to boast. “And you’ll be sorry you knew me,” George would reply “because I’ll be the best lawyer in the town!” George never did become a lawyer and Richard never made any money. Instead both men opened bookshops on opposite sides of Coleford High Street. It was hard to make money from books, which made the competition between them worse. Then Richard married a mysterious girl. The couple spent their honeymoon on the coast—but Richard never came back. The police found his wallet on a deserted beach but the body was never found. He must have drowned. Now with only one bookshop in town, business was better for George. But sometimes he sat in his narrow, old kitchen and gazed out of the dirty window, thinking about his formal rival(竞争对手). Perhaps he missed him? George was very interested in old dictionaries. He’d recently found a collector in Australia who was selling a rare first edition. When the parcel arrived, the book was in perfect condition and George was delighted. But while he was having lunch, George glanced at the photo in the newspaper that the book had been wrapped in. He was astonished—the smiling face was older than he remembered but unmistakable! Trembling, George started reading. “Bookends have bought ten bookstores from their rivals Dylans. The company, owned by multi-millionaire Richard Pike, is now the largest bookseller in Australia.” 65. George and Richard were ______ at school.

  • A. and
    B. Choose the one that fits best according to the information given in the passage you have just read.

  • [单选题]一、(本题共14分)温室气体过量排放导致气候异常,已成为威胁全球环境的重要问题。以低能耗、低污染、低排放为特征的低碳经济成为世界新一轮经济发展的方向,中国政府和人民都在积极行动(affirmative active)。低碳不仅仅是一种经济发展模式,更应该融入我们每个人的日常生活。22.2009年11月,在应对全球气候变化问题的哥本哈根会议召开之前,中国主动公布了温室气体排放控制目标,即到2020年我国单位国内生产总值的二氧化碳排放量要比2005年下降40%~45%。这表明 ( )
  • A. 联合国在协调国际经济关系中发挥着积极的作用
    B. 维护人类共同的利益是各国对外活动的目的和归宿
    C. 中国以实际行动(actual action)在国际社会发挥负责任作用
    D. 中国始终把主要精力放在提高自己的国际地位上

  • [单选题]主要发生水解反应的药物有( )。
  • A. 非那西丁
    B. 普鲁卡因
    C. 安替比林(antipyrine)
    D. 水合氯醛
    E. 硫喷妥钠

  • [单选题]下列各项中哪一项用pKb表示( )。
  • A. 酸的pH值
    B. 酸的电离常数
    C. 酸式盐的水解平衡常数的负对数
    D. 碱的pH值
    E. 碱的电离常数

  • [单选题]实验中海绵代表的地理环境是
  • A. 黄土塬
    B. 沙滩地
    C. 沼泽地
    D. 自流盆地

  • [单选题]在木材的切面上,生长轮纵向排列,呈宽带状,常形成“V”形纹理。( )
  • A. 正确
    B. 错误

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