Regular polyhedrons which can be built by using regular triangles are:
A: Regular hexahedron
B: Regular tetrahedron
C: Regular octahedron
D: Regular dodecahedron
E: Regular icosahedron
A: Regular hexahedron
B: Regular tetrahedron
C: Regular octahedron
D: Regular dodecahedron
E: Regular icosahedron
举一反三
- “Talk" is a regular verb but "be" is not. In the above sentence, regular means_________.
- 设圆半径r=2.9，编程求圆周长和圆面积 #include PI 3.14 void main() { r,area,regular; //r表示半径,area表示面积,regular表示周长 r=2.9; area= ; regular= ; printf("r= ,area= , regular= \n",r,area,regular); }
- Regular exercise can help to ________ the pain.
- The corresponding Regular Expression of the regular set L={an|n≧0} is( ) A: a* B: a+ C: aa* D: aa+
- All grateful people do regular exercise, have healthy diet, and take regular physical examinations.