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衣藻的生活史中有世代交替发生。( )

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  • 【名词&注释】

    主导地位(leading position)、世贸组织(wto)、市场信息(market information)、五四运动、因人而异(given different)、根本原因(basic reason)、科学思想(scientific thought)、产品价格(product price)、世代交替(metagenesis)、亚太经合组织(apec)

  • [单选题]衣藻的生活史中有世代交替(metagenesis)发生。( )

  • A. 正确
    B. 错误

  • 查看答案&解析
  • 举一反三:
  • [单选题]1929年5月4日国民党上海特别市执行委员会宣传部编辑的《五四特刊》认为,五四运动输入的西洋思想“不是陈腐便是过火”。“过火”思想指的是
  • A. 马克思主义
    B. 自由恋爱观
    C. 实业救国论
    D. 民主和科学思想(scientific thought)

  • [单选题]下列词语中划线的字,读音全都正确的一组是
  • A. 逾越(yú) 鸟瞰(kàn) 一丘之貉(lùo) 栩栩如生(xǚ)
    B. 溃败(kuì) 凹陷(wā) 贻笑大方(yí) 兢兢业业(jīng)
    C. 咀嚼(zǔ) 桧柏(guì) 罄竹难书(qìng) 饕餮大餐(tiè)
    D. 觊觎(jì) 攻讦(jié) 光阴荏苒(rǎn) 心怀叵测(pǒ)

  • [单选题]苹果的胎座类型是( )。
  • A. 边缘胎座
    B. 侧膜胎座
    C. 中轴胎座
    D. 基生胎座

  • [单选题]下列理解和分析,不符合原文内容的一项是
  • A. 在字形的繁难复杂方面,秦隶和汉隶要超过真书,甲骨文又要超过秦隶和汉隶,可以说这是真书使用时间特别长久的根本原因。
    B. 古时候书法流派不多,当时甚至没有“书法家”这一称呼,而到唐代书法大盛,流派逐渐增多,看来书法的发展跟社会的崇尚有很大的关系。
    C. 中国人自古就把书法作为人的品格和形象的代表,所以北朝人所谓“尺牍素书,千里面目”,也就是今人所谓“见字如见其人”的意思。
    D. 在唐代有些无名书法家的水平也很高,唐人碑版的书法其实并不代表当时的最高水平,只是因为它们是皇帝、大官所写,才为世人所推崇。

  • [单选题]孔子对不同问“孝”的人回答不同。孟懿子问孝,子曰:“无违。”子游问孝,子曰:“今之孝者,是谓能养。至于犬马,皆能有养;不敬,何以别乎?”子夏问孝,子曰:“色难。”上述问答表明①“孝”的内涵不具有共性 ②“不孝”的表现大体相同
  • A. ③“孝”的要求要体现个性 ④“孝”的方式应因人而异
    B. ①②
    C. ①③
    D. ②④
    E. ③④

  • [单选题]CPeople diet to look more attractive. Fish diet to avoid being beaten up, thrown out of their social group, and getting eaten as a result. That is the fascinating conclusion of the latest research into fish behavior. by a team of Australian scientists.
  • A. The research team have discovered that subordinate fish voluntarily diet to avoid challenging their larger competitors. “In studying gobies we noticed that only the largest two individuals, a male and female, had breeding (繁殖) rights within the group,” explains Marian Wong. “All other group members are nonbreeding females, each being 5-10% smaller than its next largest competitor. We wanted to find out how they maintain this precise size separation.”
    B. The reason for the size difference was easy to see. Once a subordinate fish grows to within 5-10% of the size of its larger competitor, it causes a fight which usually ends in the smaller goby being driven away from the group. More often than not, the evicted fish is then eaten up.
    C. It appeared that the smaller fish were keeping themselves small in order to avoid challenging the boss fish. Whether they did so voluntarily, by restraining how much they ate, was not clear. The research team decided to do an experiment. They tried to fatten up some of the subordinate gobies to see what happened. To their surprise, the gobies simply refused the extra food they were offered, clearly preferring to remain small and avoid fights, over having a feast.
    D. The discovery challenges the traditional scientific view of how boss individuals keep their position in a group. Previously it was thought that large individuals simply used their weight and size to threaten their subordinates and take more of the food for themselves, so keeping their competitors small.
    E. While the habits of gobies may seem a little mysterious, Dr. Wong explains that understanding the relationships between boss and subordinate animals is important to understanding how hierarchical (等级的) societies remain stable.
    F. The research has proved the fact that voluntary dieting is a habit far from exclusive to humans. “As yet, we lack a complete understanding of how widespread the voluntary reduction of food intake is in nature,” the researchers comment. “Data on human dieting suggests that, while humans generally diet to improve health or increase attractiveness, rarely does it improve long-term health and males regularly prefer females that are fatter than the females’ own ideal.”
    G. 65. When a goby grows to within 5-10% of the size of its larger competitor, it .
    H. faces danger B. has breeding rights
    I. eats its competitor D. leaves the group itself

  • [单选题]在亚洲新兴市场经济国家订购价不到十美元一双的耐克鞋,在美国等国家的市场上竟然平均要卖到四五十美元。这一现象表明
  • A. 国际分工体系的不平等 亚太经合组织(apec)发挥了作用 世贸组织受到美国控制 亚洲商人的市场信息滞后

  • [单选题]The author’s purpose of writing this article is to tell people _________.
  • A. how to take a right attitude in business
    B. how to avoid misunderstandings in business
    C. how to use a local language in business
    D. how to act politely and properly in business

  • [单选题]Why is Franklin described as “Dark Lady of DNA”?
  • A. She developed pictures in dark labs.
    B. She discovered the black X------ the shape of DNA.
    C. Her name was forgotten after her death.
    D. Her contribution was unknown to the public.

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