下列照明方式中,属间接照明的是()。
A. 嵌入灯
B. 镜前灯
C. 落地灯
D. 壁灯
木地板的地搁栅固定间距不得大于()。
A. 600mm
B. 500mm
C. 450mm
D. 350mm
Which of the following integers is the closest to the value for the unit length of one leg
A. 8
B. 9
C. 10
D. 11
E. 12
A certain cube contains 125 cubic inches.What is the surface area, in square inches,of each square face of the cube?
A. 5
B. 10
C. 15
D. 20
E. 25