以下是关于【爱护水资源】的公开课/优质课视频，一共64个
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06:00118 -
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35:3890 -
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15:3944 -
39:3977 -
36:58100 -
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36:5862 -
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1:51:1183 -
40:31120 -
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09:1123 -
42:23137 -
45:1957 -
48:45114 -
47:1976 -
12:4565 -
44:41102 -
42:39135 -
34:04100 -
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17:5996 -
33:41105 -
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33:5290 -
45:5819 -
44:31136 -
49:1967 -
44:2243 -
10:348 -
42:2297 -
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43:0486 -
45:0999 -
46:18104 -
04:4060 -
44:5458 -
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42:0682 -
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25:4575 -
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41:40114 -
37:1162 -
35:4877 -
11:3018 -
48:2081 -
46:54128 -
09:019 -
40:3143 -
14:328 -
38:5580 -
41:03138 -
41:07128 -
47:39129