题目内容:
The writer of the passage wants us to know that__________ .
A.Copernicus did not tell about his discovery until the day of his death B.for many years Copernicus dared to do nothing openly against the Church
C.pushed by his friends Copernicus decided to write a book in May 1543
D.shortly before he got back to Poland Copernicus started to work for the Church
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