The slenderness ratio is the ratio of ( )
A: area of column to least radius of gyration
B: length of column to least radius of gyration
C: least radius of gyration to area of column
D: least radius of gyration to length of column
A: area of column to least radius of gyration
B: length of column to least radius of gyration
C: least radius of gyration to area of column
D: least radius of gyration to length of column
举一反三
- The slenderness ratio is [img=30x25]1803a0f79d25495.png[/img], where [img=9x14]1803a0f7a75d311.png[/img] is the ( ) radius of gyration of the cross section. Buckling will occur about the axis where this ratio gives the ( ) value. A: smallest, greatest B: smallest, smallest C: largest, greatest D: smallest, any
- 如果有以下关于变量赋值的程序代码： float radius = 88.2; double area= 3.14 * radius * radius; System.out.println(area);
- 输入一个表示半径的浮点数，计算圆的面积的程序正确的有：（圆周率取3.14，结果保留2位小数） A: radius = float(input())area = 3.14 * radius ** 2print(round(area, 2)) B: radius = float(input())area = 3.14 * radius * radiusprint(round(area, 2)) C: radius = input()print(round(3.14 * radius ** 2, 2)) D: radius = float(input())print(round(3.14 * radius * radius, 2))
- 输入一个表示半径的浮点数，计算圆的面积的程序正确的有：[br][/br] （圆周率取使用math库中的pi值，结果保留2位小数） A: import math <br> radius = float(input()) area = math.pi * radius ** 2 print(round(area, 2)) B: import math <br> radius = float(input()) area = pi * radius ** 2 print(round(area, 2)) C: from math import pi <br> radius = float(input()) area = math.pi * radius ** 2 print(round(area, 2)) D: from math import pi <br> radius = float(input()) area = pi * radius ** 2 print(round(area, 2))
- 对于如下程序： public class Test { public static void main(String[] args) { double radius; final double PI= 3.15169; double area = radius * radius * PI; System.out.println("Area is " + area); } } 下列说法正确的是