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学生说明
Complete all the activities on the space choice board by tapping on the images.
教师备注（学生不可见）
https://docs.google.com/presentation/d/103C8bjWUpDd2nGfqBa28OC595xDZkKrwTXauN8BxqoI/copy Please do not request access. Instead, Click the link to copy the template.
