下列说法错误的是( )。知识点:函数
A: 已知元组列表x=[(2,3,10),(1,2,3),(2,6,7),(3,5,10)],那么sorted(x, key=lambda item : item[0]+item[2])排序后,print(x)的输出结果是:[(1, 2, 3), (2, 6, 7), (2, 3, 10), (3, 5, 10)]
B: 已知num=[2,3,4,5], print('*'.join(map(str, num)))的输出结果是:2*3*4*5
C: 已知x=[5, 2, 3, 4, 9],那么执行代码x = sorted(x[0::2], reverse=True)之后,x的值为[9,5,3]
D: 下面代码定义了求解[img=80x42]18032de31cc0093.png[/img]的函数,并计算x=9的取值import mathdef log3(x): return math.log(x)/math.log(3)f = log3print(f(9))
A: 已知元组列表x=[(2,3,10),(1,2,3),(2,6,7),(3,5,10)],那么sorted(x, key=lambda item : item[0]+item[2])排序后,print(x)的输出结果是:[(1, 2, 3), (2, 6, 7), (2, 3, 10), (3, 5, 10)]
B: 已知num=[2,3,4,5], print('*'.join(map(str, num)))的输出结果是:2*3*4*5
C: 已知x=[5, 2, 3, 4, 9],那么执行代码x = sorted(x[0::2], reverse=True)之后,x的值为[9,5,3]
D: 下面代码定义了求解[img=80x42]18032de31cc0093.png[/img]的函数,并计算x=9的取值import mathdef log3(x): return math.log(x)/math.log(3)f = log3print(f(9))
举一反三
- 下列说法错误的是( )。知识点:函数 未知类型:{'options': ['已知元组列表x=[(2,3,10),(1,2,3),(2,6,7),(3,5,10)],那么sorted(x, key=lambda item : item[0]+item[2])排序后,print(x)的输出结果是:[(1, 2, 3), (2, 6, 7), (2, 3, 10), (3, 5, 10)]', "已知num=[2,3,4,5], print('*'.join(map(str, num)))的输出结果是:2*3*4*5", '已知x=[5, 2, 3, 4, 9],那么执行代码x = sorted(x[0::2], reverse=True)之后,x的值为[9,5,3]', '下面代码定义了求解[img=80x42]17de930c3fac9cf.png[/img]的函数,并计算x=9的取值import mathdef log3(x): return math.log(x)/math.log(3)f = log3print(f(9))'], 'type': 102}
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 求不定积分[img=121x54]17da653839aa6ae.png[/img]; ( ) A: log(x^2 + 3*x + 25/4)/4 + (5*atan(x/2 + 3/4))/4 B: log(x^2 + 3*x + 25/4)/4 C: (5*atan(x/2 + 3/4))/4 D: log(x^2 + 3*x + 25/4)/4 - (5*atan(x/2 + 3/4))/4
- set1 = {x for x in range(10) if x%2!=0} print(set1) 以上代码的运行结果为? A: {1, 3, 5, 7, 9} B: {1, 3, 5, 7} C: {3, 5, 7, 9} D: {3, 5, 7}
- set1 = {x for x in range(10) if x%2!=0} set1.remove(1) print(set1) 以上代码的运行结果为? A: {1, 3, 5, 7, 9} B: {1, 3, 5, 7} C: {3, 5, 7, 9} D: {3, 5, 7}