一些逻辑训练的谜题:娜塔莎、十二点钟和茶
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>>so for your second question first:Can there be a m...
we can connect a minus point and a plus point without crossing a line. All new formed triangles will have this new formed line as their edges, otherwise they are not new formed, and they're fated to be inconsistent trinities.
This is gold! I should have thought of that.
So it is perfectly possible to predict just by reading the signs of unconnected pairs, am I right?
