以下是关于【气温的变化】的公开课/优质课视频，一共64个
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47:265 -
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15:1316 -
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39:5243 -
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38:3579 -
36:5045 -
39:47130 -
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37:3185 -
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40:0564 -
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37:4994 -
36:077 -
45:2018 -
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51:0576 -
35:4396 -
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40:10103 -
42:0747 -
31:5651