更多“生物群落(biotic community)”相关问题
  • 第1题:

    Which configuration command builds a read-write SNMP community named operator?()

    A.Snmp-server community operator.

    B.Snmp-server operator community.

    C.Snmp-server community operator rw.

    D.Snmp-server operator community rw


    参考答案:C

  • 第2题:

    什么是生物群落?


    正确答案:生物群落:地球上多种生物通过各种方式,彼此联系而共同生活在一起所组成的生物社会。

  • 第3题:

    生物群落(biotic community)


    正确答案: 是指在一定时间内,居住在一定区域或生境内的各种生物种群相互联系、相互影响的有规律的一种结构单元。

  • 第4题:

    Which configuration command builds a read-write SNMP community named operator?()

    • A、Snmp-server community operator.
    • B、Snmp-server operator community.
    • C、Snmp-server community operator rw.
    • D、Snmp-server operator community rw

    正确答案:C

  • 第5题:

    碳元素以()形式在生物群落和无机环境之间循环,在生物群落内部又以()形式传递。


    正确答案:二氧化碳;含碳有机物

  • 第6题:

    先锋群落 pioneer community


    正确答案: 最先生活并聚居在某一生态环境中的生物类群。

  • 第7题:

    Which three statements are true about a registration server in a community?() (Choose three.)

    • A、It is a hub device installed in the community.
    • B、A community can have one or more registration servers.
    • C、It shows the serial numbers of all devices in the community.
    • D、It stores network and community information for each device.
    • E、It is required for tunnel formation between different WX devices in the same community.

    正确答案:B,D,E

  • 第8题:

    生物群落


    正确答案: 是指在一定地段或一定生境里的各种生物种群结合在一起的结构单元。生物群落的重要性在于强调各种生物能有机地、有规律的在一定空间内共处而不是各自以独立物体的面目散布在地球上。

  • 第9题:

    单选题
    The combined evidence of history and ecology seems to support one general deduction : the less violent the man-made changes, the greater the probability of successful readjustment in the biotic pyramid.
    A

    inference      

    B

    induction      

    C

    hypothesis      

    D

    speculation


    正确答案: D
    解析: 句意:历史与生态学相结合的证据似乎支持这样一种普遍的推论:人为改变越小,生物金字塔成功调整的可能性就越高。inference推论。deduction与之同义。induction归纳法。hypothesis假设。speculation猜测。

  • 第10题:

    多选题
    Which three statements are true about a registration server in a community?() (Choose three.)
    A

    It is a hub device installed in the community.

    B

    A community can have one or more registration servers.

    C

    It shows the serial numbers of all devices in the community.

    D

    It stores network and community information for each device.

    E

    It is required for tunnel formation between different WX devices in the same community.


    正确答案: A,B
    解析: 暂无解析

  • 第11题:

    名词解释题
    生物群落(biotic community)

    正确答案: 是指在一定地段或生境中各种生物种群所构成的集合。
    解析: 暂无解析

  • 第12题:

    单选题
    Which description is correct for a private VLAN community port with respect to Layer 2 communications?()
    A

     It communicates with all other community ports in the private VLAN domain.

    B

     It communicates with only isolated ports in the private VLAN domain.

    C

     It communicates only with other community ports in the same community and associated promiscuous ports.

    D

     It communicates only with associated promiscuous and isolated ports.


    正确答案: D
    解析: 暂无解析

  • 第13题:

    Exhibit:Youworkasanetworkadministratorat.Youstudytheexhibitcarefully.WhatcanbedrawnaboutVLANs200and202fromtheexhibit?()

    A.VLAN200carriestrafficfrompromiscuousportstoisolated,community,andotherpromiscuousportsinthesameVLAN.VLAN202carriestrafficbetweencommunityportsandtopromiscuousports.

    B.VLAN200carriestrafficfrompromiscuousportstoisolated,community,andotherpromiscuousportsinthesameVLAN.VLAN202carriestrafficfromisolatedportstoapromiscuousport.

    C.VLAN202carriestrafficfrompromiscuousportstoisolated,community,andotherpromiscuousportsinthesameVLAN.VLAN200carriestrafficfromisolatedportstoapromiscuousport.

    D.VLAN202carriestrafficfrompromiscuousportstoisolated,community,andotherpromiscuousportsinthesameVLAN.VLAN200carriestrafficbetweencommunityportsandtopromiscuousports.


    参考答案:C

  • 第14题:

    Community


    正确答案:Community——指占据一定地域,彼此相互作用,不同社会特征的人类生活共同体。

  • 第15题:

    生物群落演替。


    正确答案: 生态系统内的生物群落随着时间的推移,一些物种消失,另一些物种侵入,出现了生物群落及其环境向着一定方向,有顺序的发展变化过程,称为生物群落演替。

  • 第16题:

    community intervention trial


    正确答案:社区干预试验,往往在某个地区的所有人群中进行,持续时间一般较长,目的是通过干扰某些危险因素或施加某些保护性措施,然后了解它们在人群中产生的预防效果。由于社区干预试验难以贯彻随机化原则,故又称为类实验研究。

  • 第17题:

    群落 community


    正确答案: 生态系统中的最高生物单位。包括生物类群及相互作用。

  • 第18题:

    岩内微生物群落 endolithic microbial community


    正确答案: 生存在岩石内部的微生物类群。

  • 第19题:

    生物群落可简单地分为()、()和微生物群落三大类。


    正确答案:植物群落、动物群落

  • 第20题:

    单选题
    河流生物群落的典型代表是()
    A

    缓流生物群落

    B

    急流生物群落

    C

    鱼类

    D

    水生生物


    正确答案: C
    解析: 暂无解析

  • 第21题:

    名词解释题
    岩内微生物群落 endolithic microbial community

    正确答案: 生存在岩石内部的微生物类群。
    解析: 暂无解析

  • 第22题:

    填空题
    生物群落可简单地分为()、()和微生物群落三大类。

    正确答案: 植物群落、动物群落
    解析: 暂无解析

  • 第23题:

    单选题
    The combined evidence of history and ecology seems to support one general deduction : the less violent the man made changes, the greater the probability of successful readjustment in the biotic pyramid.
    A

    inference

    B

    induction      

    C

    hypothesis    

    D

    speculation


    正确答案: A
    解析: 句意:综合历史学和生态学两方面的证据似乎可以得出这样一个基本推论:在进行变革的过程中,人们的暴力程度越低,他们在生命的金字塔上取得成功调整的可能性就越大。deduction推论。inference与之同义。induction归纳。hypothesis假设。speculation推测。

  • 第24题:

    单选题
    Which of the following is the best version of sentence 2 (reproduced below)?The medical community doesn't know the cause, has difficulty diagnosing it, and it is hard to test.
    A

    The medical community does not know the cause of the disease, has difficulty diagnosing it, and cannot test for it.

    B

    Because the medical community does not know the cause, they cannot diagnose or test for it.

    C

    The medical community does not know the cause and has difficulty diagnosing it, so it is hard to test.

    D

    The medical community does not know the cause, diagnosis, or test.

    E

    Additionally, the medical community cannot cause, diagnose, or test for the disease.


    正确答案: B
    解析:
    B,C,D项改变了句子的意思。C项中的“it”指代模糊。A项句子最为简洁且表意最清晰。