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Skimming
Part 1: Para. ___to ____ Part 2: Para. ___ Part 3: Para. ___ to ____
Divide the passage into three parts and find out the main idea of each part.
1 2
3
4 8
the discovery of DNA and cloning
the way how cloning works
the reasons why scientists want cloning or the studying of DNA and their relative disadvantages
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