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in the long cold weather.
(D) Before the giants dinosaurs died out, new kinds of animals began to appear on earth.
① A-B-C-D
② B-A-C-D
③ C-A-B-D
④ B-C-A-D
⑤ D-C-B-A
※ 다음 글을 읽고 물음에 답하시오.
Most scientist are not satisfied with any one of these reasons. But it certain that they were
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