2. 外语
  3. It is the firm belief of astronomers【C1】______there are living creatures on other planets. It is also their ear- nest wish that

It is the firm belief of astronomers【C1】______there are living creatures on other planets. It is also their ear- nest wish that

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问题     It is the firm belief of astronomers【C1】______there are living creatures on other planets. It is also their ear- nest wish that some day【C2】______may be made with such living creatures【C3】______sending messages in the form of radio signals. The【C4】______of communicating with people on other planets may one day come【C5】______since radio telescopes【C6】______.
    Scientific project of various kinds are now being launched to【C7】______signals or to receive signals from distant planets.      The question now【C8】______: What sort of message【C9】______so that it could be understood? To send a message in any language would be impractical【C10】______it would【C11】______not be intelligible.
It is the opinion of scientists that a signal in the【C12】______of a simple arithmetic sequence might be understood.
    Scientists think that pictures might also be understood, so it【C13】______a good idea to send pictures of the people【C14】______our planet. Pictures of domestic animals together with【C15】______crops we【C16】______for our food might also be【C17】______. Pictures of houses and buildings might【C18】______further information about our life and society.
    As time goes on, TV pictures might be sent, which would【C19】______acquaint the beings on other planets【C20】______life and the level of civilization on our planet.
【C15】
选项 A、vicious
B、various
C、vary
D、vision
答案B
解析 词语辨析题。此题的干扰项设计的特点为：干扰项与答案拼写比较相似。原文此处的含义可以判断为各种各样的农作物。A) vicious 是形容词，词义为“恶的，不道德的，恶意的，刻毒的，堕落的，品行不端的，有错误的”，不可能用来形容作物。B) various 形容词，意思是“不同的，各种各样的，多方面的，多样的”，为正确答案。C) vary 是动词，词义为“改变，变更，使多样化”。D) vision 是名词，含义为“视力，视觉，先见之明，眼力，想像力，幻想，幻影，景象”。
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大学英语四级

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