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Answers to the Mathematics College Entrance Examination in Hubei Province
The total * * * has c (3,8) = 56 triangles, and c (3,8) represents the combination number of 3 in 8.

There are two options: c (2 2,56) =1540.

If there are two triangular * * * faces, their vertex * * * faces, in the parallelepiped, there are at most four * * * faces, and there are 12 groups of four * * * faces, including six faces and six diagonal faces (for example: ABC'D', I forgot whether this is called diagonal faces, anyway, I just know.

Every four points on the * * * plane can form four triangles, and there are six ways to take out two triangles on the * * * plane: c (2 2,4) = 6.

Therefore, there are 72 ways to get the * * * surface.

The probability of * * surface is 72/ 1540 = 18/385.

So the probability p of non-face is 367/385.

So choose one