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2002.9-----------18
18. Although the term "corrosion" applies mostly to metals and particularly to their reaction to oxygen, all material are subject to surface deterioration.
answer: C material---------materials no problem
2002.8-------36
36. Almost every the hereditary material of an individual organism resides in the chromosomes.
answer: A every------all or each of the
should material correct to materials? but how to explain resides??
thanks a lot!!
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发表于 2004-6-4 08:54:00
