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发表于2024-12-03
SMARTLAB pdf epub mobi txt 電子書 下載 2024
Take control! Kids build the remote themselves and gain hands-on experience with the science of light and energy. Includes everything kids need to build a working remote control (for use with home TV and VCR). Kids build and program this universal remote to discover how light and energy make channel surfing possible.
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SMARTLAB pdf epub mobi txt 電子書 下載 2024