The first question:16 = (4-0) * 4,48 = (16-4) * 4, 128=(48- 16)*4, () = (/kloc.
Question 2: 2 = 0.5 * 1+0.5+ 1, 5 = 1 * 2+ 1+2, 17 = 2 * 5+2+5,15.
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Summary of college students' social practice activities 100 words 1
In this hot July, we bid farewell to th