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题库 / Prep2007E1-SC-42
As a result of a supernova explosion, every human being on Earth was bombarded on February 23, 1987, by about 100 billion neutrinos; fortunately, neutrinos are harmless elementary particles that are produced in nuclear reactions and that interact very weakly with matter.
neutrinos are harmless elementary particles that are produced in nuclear reactions and that
neutrinos, which are harmless, are elementary particles produced in nuclear reactions and which
neutrinos are harmless elementary particles produced in nuclear reactions and which
these harmless elementary particles are produced in nuclear reactions, and neutrinos
these elementary particles, harmless products of nuclear reactions, are neutrinos that
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
1) 限定性定语从句表示的是局部概念: 例: I am checking up the models who are in black T-shirt. 表
明有很多模特,而我打量的是那些穿黑色圆领衫的模特.限定性定语从句区分了我打量的模特和其他的
模特.
2) 非限定定语从句表示的是整体的概念: 例: I am checking up the models, who are in black T-shirt.
表明这里有一群模特,这些模特共同的特点是她们都穿黑色圆领衫.
补充说明:
该题读题的时候读到分号为止,没有发现划线部分,可以立刻忽略分句前半部分.
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