PREVIEW
... of the auditorium lit up, displaying slides in shades of blue, green, and white, scrolling through one by one along with the person in charge’s speech.
The Academy of Sciences had selected several of the most representative experiments from past years, and added a few core experiments from this year’s emerging technologies. freёwebnovel.com
The difficulty levels were uneven, divided into five grades.
From easiest to hardest, they were lv.1, lv.2, lv.3, lv.4, lv.5.
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