The tracks of high-speed train must have a ________ A: longer curve radius B: shorter curve radius C: thinner curve radius D: wider curve radius

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2022-05-27 问题

The tracks of high-speed train must have a ________ A: longer curve radius B: shorter curve radius C: thinner curve radius D: wider curve radius

2022-06-11 问题

如图程序,请补充横线处代码。 A: radiusradiuspi B: radiusradiusmath.pi C: radius2math.pi D: radius2pi

如图程序,请补充横线处代码。 A: radius*radius*pi B: radius*radius*math.pi C: radius2*math.pi D: radius2*pi

2022-06-06 问题

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：（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))

2021-04-14 问题

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);

2022-06-03 问题

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

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

2022-06-11 问题

class Circle{ double radius; void print(){ double pi; System.out.println("周长是："+2piradius); System.out.println("面积是："+piradiusradius); }}这段代码有没有错误？ A: 没写构造函数 B: radius没有初始化 C: 没有错误 D: pi没有初始化

class Circle{ double radius; void print(){ double pi; System.out.println("周长是："+2*pi*radius); System.out.println("面积是："+pi*radius*radius); }}这段代码有没有错误？ A: 没写构造函数 B: radius没有初始化 C: 没有错误 D: pi没有初始化

2022-06-07 问题