We rehearsed the answers of P32~ 39 on page B and P36~39 on page A of the seventh grade exercise book in layers in the class of Topological Thinking Calm Mathematics.
Aben: Page 36/kloc-0 1.C2.D3.C4.C5.a6 Determine a straight line at two points 7.123 8.1; 6; Page 37: 9. (1)QP line (2)l line (3)MN line (4)a line (5) Ray AB 10. Ellipsis 1 1. Ellipsis 12. C.