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ACCORDING TO THE PASSAGE , WHEN WAS THE UNIVERSE F...
ACCORDING TO THE PASSAGE , WHEN WAS THE UNIVERSE FORMED
20 DE THI HSG ANH 9
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Đáp án tham khảo
2/ According to the passage , when was the universe formed?
a. Ten billion years ago.
b. Fifteen billion years ago
c. At T = 0
d. Twenty billion years ago
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20 DE THI HSG ANH 9