单项选择题

A．He liked writing when he was a child
B．He enjoyed reading stories in Reader’’s Digest
C．He used to be an editor of Reader’’s Digest
D．He became well known at the age of six
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单项选择题
The author’’s main purpose in writing this passage is to ______.
A．discuss the negative effects of patenting genes
B．face possible moral consequences of patenting genes
C．condemn the selfishness of researchers who patent genes
D．weigh the advantages and disadvantages of patenting genes
填空题
stolen
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