Titlebook: Family Planning; P. F. Selman Book 1988 The Economic and Social Research Council 1988 Childlessness.behavior.development.evaluation.family

condemn

5楼

疏忽

5楼

公式

6楼

技术

6楼

SEMI

6楼

故意钓到白杨

7楼

占线

7楼

Concomitant

7楼

parsimony

冲突

,Odd or Even, Jitterbug Versus Grünbaum’s Double Polyhedra,orm polyhedra to be vertex-transitive polyhedra with regular faces. They define a polyhedron to be a finite set of polygons such that each side of a polygon is a side of just one other polygon, such that no non-empty proper subset of the polygons has the same property. By a polygon they implicitly m