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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
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C，Eutrinos are harmless elementary particles produced in nuclear reactions and which interact very weakly with matter.
连词+分词构成定语或状语，When studying GMAT, I feel hard.
which是代词不是连词，不能which+分词构成定语或状语。如果将C的第一个定语视为that/which的省略，应该是particles (which) ARE produced in nuclear reactions, 不能省略谓语be动词。所以C的第一个分词定语与第二个which引导的定语不能平行。
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