As a result of a supernova explosion, everyhuman being on Earth was bombarded on February 23, 1987, by about 100 billion neutrinos; fortunately, neutrinos are harmless elementary particles that are producedin nuclear reactions and that interact veryweakly with matter.
a. neutrinos are harmless elementary particlesthat are produced in nuclear reactions and that
b. neutrinos, which are harmless,are elementary particles produced in nuclear reactions and which
c. neutrinos are harmless elementary particles produced in nuclear reactions and which
d. these harmless elementary particles areproduced in nuclear reactions, and neutrinos e. these elementary particles, harmless products of nuclear reactions, are neutrinos that
[size=14.007px]這邊D和E的these為什麼不行呢?? 這邊的these不是修飾elementary particles?
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