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"The Sink and Float of Materials in Water" Materials Around Us PPT Courseware 3
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2023-09-25 18:14:07
"Water Pollution and its Prevention and Control" Resource Protection and Environmental Crisis PPT Courseware
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Cartoon primary school students' drowning prevention safety education theme class meeting PPT template
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Chinese feng shui ink style classical teacher lecture courseware general PPT template
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Cartoon primary school students' drowning prevention safety education theme class meeting PPT template
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Watercolor butterfly creative teacher learning courseware education training PPT template
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Dynamic ink lotus background classical Chinese style PPT template download
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2020-12-14 13:10:02
Simple blue watercolor wind graduate thesis defense PPT template
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Ink bamboo Beijing's dynamic Chinese style PowerPoint template free download
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2019-01-25 07:00:00
Dynamic mid-autumn festival slide template with golden lotus landscape background
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2019-02-07 18:00:00
11-Classical ink-Chinese style P-PT background pictures for free download
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2019-02-02 07:00:00
"Consolidation and Development of a Unified Multi-Ethnic State" PPT courseware on the prosperity of a unified country and the prosperity of the agricultural economy
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"Water Pollution and Its Prevention and Control" Resource Protection and Environmental Crisis PPT Courseware 2
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Quiet night sky moon background drawn by watercolor PPT template free download
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Watercolor flowers and butterflies background as fresh as summer flowers Hello May PPT template
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Free download of teaching lecture PPT template with classical ink lotus background
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2023-10-05 09:12:35
"The highest altitude pastoral area - Qinghai-Tibet Pastoral Area" One side of the water and soil supports one side of the people PPT
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"Will a sinking object be affected by the buoyancy of water?" Sinking and Floating PPT Courseware 3
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"Erosion of Land by Rainwater" Earth's Surface and Its Changes PPT Courseware 2
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Teacher's Day event planning PPT template with watercolor flowers and teacher background
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A group of Chinese ink painting background classical Chinese style PPT background pictures
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2019-03-10 19:00:00
Hand painted watercolor kindergarten preschool education elementary school children education training P
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2020-09-22 17:10:02
Yellow elegant ink Chinese style slideshow background picture free download
下载 2 次
2019-02-11 07:00:00
Chinese wind PPT template of bronze tripod ink bamboo Chinese garden background
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2019-01-30 22:00:00
Free download of Korean style business PPT template with fresh watercolor floral background
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Ancient style PPT template download with ink mountains and ancient buildings and red lanterns background
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"Water Cycle Process and Geographic Significance" Natural Geographic Elements and Phenomenon PPT
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"Global Warming and Water Crisis" Temperature and Physical State Changes PPT Courseware
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"Water Pollution and Its Prevention and Control" Resource Protection and Environmental Crisis PPT Courseware 2
下载 263 次
2023-09-25 17:32:13
Blue watercolor hand-painted cute baby training camp early education children PPT background template
下载 498 次
2020-12-01 14:10:01
Ink painting and Confucius statue background moral lecture theme PPT template
下载 1 次
2019-03-15 11:00:00
Art design PPT template with blue watercolor and triangle combination
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2019-02-16 08:00:00
Teacher's Day event planning PPT template with watercolor flowers and teacher background
下载 680 次
2023-03-06 11:57:36
Blue watercolor hand-painted cute baby training camp early education children PPT background template
下载 498 次
2020-12-01 14:10:01
Watercolor wind leaves natural and fresh enterprise year-end work summary PPT template
下载 427 次
2020-08-28 08:10:02
Art design PPT template with blue watercolor and triangle combination
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2019-02-16 08:00:00
"Erosion of Land by Rainwater" Earth's Surface and Its Changes PPT Courseware 3
下载 372 次
2023-10-05 09:39:00
Interesting Chinese character PPT template with dark green watercolor mountains scroll background
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Purple watercolor girl avatar background Women's Day event planning PPT template
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Download event planning plan PPT template with red and blue watercolor paint background
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Poetry conference PPT template download with ink mountains, flowers and birds book background
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Download the Chinese culture theme PPT template with ink mountains, flowers, branches and cranes background
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"The Loess Plateau with crisscrossed gullies" PPT courseware where water and soil support people
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"my country's Economic Center - Shanghai" The soil and water support the people PPT courseware
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"The Beauty of Hometown and the People of Hometown" PPT courseware where the soil and water support the people.
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"Approaching Guilin Landscape" PPT courseware on landforms and soil from the perspective of circle effects
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Watercolor wind leaves natural and fresh enterprise year-end work summary PPT template
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Yellow elegant ink Chinese style slideshow background picture free download
下载 2 次
2019-02-11 07:00:00
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