更多“《保护野生动物迁徙物种公约》于1983年11月1日开始生效。”相关的问题
以下哪一种昆仲属于完全变态（）
A . 蝗虫
B . 蚜虫
C . 蝇
D . 飞虱
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指数基金的收益率一般高于市场平均收益率。( )
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根据以下材料，回答48-59题 一般资料：求助者，女性，35岁，全职妈妈。 案例介绍：求助者的儿子今年上小学一年级，求助者为儿子的学习问题前来咨询。 下面是心理咨询师与该求助者的一段...所谓求助者的“主要问题”，指的是求助者（）的问题。
A.最关心
B.最先提出
C.最困扰
D.最迫切需要解决
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动脉导管未闭伴梗阻性肺动脉高压______
A.反复发生肺炎、心力衰竭
B.出现左上肢及下肢青紫
C.出现右上肢及口唇青紫
D.可试用消炎痛治疗
E.右心导管检查，心导管常可进入升主动脉
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在Word中,选择“文件”菜单下的“另存为”命令,可以将当前打开的文档另存为能是( )。(2.5分)
A. txt文本文档 B. ppt文件类型 C. xls文档类型 D. bat文档类型
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已知有向图G=（V，E），其中V=V1，V2，V3，V4，V5，V6，E=＜V1，V2＞，＜V1，V4＞，＜V2，V6＞，＜V3，V1＞，＜V3，V4＞，＜V4，V5＞，＜V5，V2＞，＜V5，V6＞，G的拓扑序列是（）。
A．V3，V1，V4，V5，V2，V6
B．V3，V4，V1，V5，V2，V6
C．V1，V3，V4，V5，V2，V6
D．V1，V4，V3，V5，V2，V6
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井口有时可底于当地历年最高洪水位。（）
A.对 B.错
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As the natural process of creation of life, _______ was the source of all living things and the source of all values.
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以下不利于减少观测误差的是（）。
A.在监测过程中多进行重复观测
B.水准线路尽量减少转站次数
C.尽量固定监测人员
D.炎热的夏天中午进行水准监测
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马克思提出的利息本质观是（）
A . 利息是人们放弃货币流动性的报酬
B . 利息是货币所有者因出让货币使用权而从借款人那里获得的补偿
C . 利息是资金短缺者从市场上筹集资金的成本
D . 利息是剩余价值的特殊转化形态，是利润的一部分
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王家湾奥陶系赫南特阶金钉子反映的年龄是（）亿年。
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关于青铜合金镜架材料说法不合适的是（）。
A . 青铜材料的镜架常用于眼镜架弹簧与圈形的制作
B . 青铜材料又称铜镍锌锡合金
C . 青铜材料镜架的缺点是加工困难，对酸类的抗腐蚀性差
D . 青铜材料镜架的优点是良好的弹性、耐磨性及抗磁性
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金属离子的作用是( )。 A．传递氢和某些化学基团 B．维持酶的特定构象所必需 C．在酶与底物反应中起桥梁作用 D．作为酶活性中心的组成部分 E．是酶分子的辅助成分
A.传递氢和某些化学基团B.维持酶的特定构象所必需C.在酶与底物反应中起桥梁作用D.作为酶活性中心的组成部分
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下列问题中，每道题先给出一组相关的词，请你在备选答案中找出一组与之在逻辑关系上最为贴近、相似或匹配的词。叶公好龙：名副其实
A．郑人买履：达权通变
B．邯郸学步：东施效颦
C．杞人忧天：庸人自扰
D．愚公移山：持之以恒
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Friends play an important part in our lives, and although we may take the friendship for granted, we often don"t clearly understand how we make friends. While we get on well with a number of people, we are usually friends with only a very few. For example, the average among students is about 6 per person. In all the cases of friendly relationships, two people like one another and enjoy being together, but beyond that, the degree of intimacy between them and the reasons for their shared interest vary enormously. As we get to know people we take into account things like age, race, economic condition, social position , and intelligence. Although these factors are not of prime importance, it is more difficult to get on with people when there is a marked difference in age and background. Some friendly relationships can be kept on argument and discussion, but it is usual for close friends to have similar ideas and beliefs, to have attitudes and interests in common— they often talk about "being on the same wavelength". It generally takes time to reach this point. And the more intimately involved people become, the more they rely on one another. People want to do friends favors and hate to break a promise. Equally, friends have to learn to put up with annoying habits and to tolerate differences of opinion. In contrast with marriage, there are no friendship ceremonies to strengthen the association between two people. But the supporting and understanding of each other that results from shared experiences and emotions does seem to create a powerful bond, which can overcome differences in background, and break down barriers of age, class or race.
A．using the same frequency while talkingB．keeping the same friendly relationship as other people doC．having similar ideas, beliefs, attitudes and interestsD．having the same background
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