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THE X-RAY _____IN 1895. A. IS SAID TO BE DISCOVERE...
THE X-RAY _____IN 1895. A. IS SAID TO BE DISCOVERED B. SAID TO DI...
File thứ 2: anhkhoi12_1311201715
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21. The X-ray _____in 1895.
A. is said to be discovered B. said to discover
C. is said to have been discovered
D. said to have been discovered
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21.
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File thứ 2: anhkhoi12_1311201715